throbber

`Trials@uspto.gov
`571-272-7822
`
`
`
`
`
`
`
`Paper 75
`Entered: April 20, 2023
`
`
`UNITED STATES PATENT AND TRADEMARK OFFICE
`____________
`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`____________
`
`SLAYBACK PHARMA LLC,
`Petitioner,
`
`v.
`
`EYE THERAPIES, LLC,
`Patent Owner.
`____________
`
`IPR2022-00142
`Patent 8,293,742 B2
`____________
`
`Record of Oral Hearing
`Held: February 27, 2023
`____________
`
`Before TINA E. HULSE, ROBERT A. POLLOCK, and RYAN H. FLAX,
`Administrative Patent Judges.
`
`
`
`
`
`
`
`
`
`
`
`

`

`IPR2022-00142
`Patent 8,293,742 B2
`
`APPEARANCES:
`
`ON BEHALF OF THE PETITIONER:
`
`ROBERT FREDERICKSON, III
`Goodwin Proctor LLP
`100 Northern Avenue
`Boston, MA 02210
`rfrederickson@goodwinlaw.com
`
`LINNEA P. CIPRIANO
`Goodwin Procter LLP
`The New York Times Building
`620 Eighth Avenue
`New York, NY 10018
`lcipriano@goodwinlaw.com
`
`ON BEHALF OF THE PATENT OWNER:
`
`BRYAN C. DINER
`CAITLIN E. O'CONNELL
`CHRISTINA JI-HYE YANG
`JUSTIN J. HASFORD
`Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
`901 New York Ave, NW
`Washington, D.C. 20001-4413
`bryan.diner@finnegan.com
`caitlin.oconnell@finnegan.com
`christina.yang@finnegan.com
`justin.hasford@finnegan.com
`
`The above-entitled matter came on for hearing on Monday, February
`27, 2023, at 1:00 p.m., at the U.S. Patent and Trademark Office, 600 Dulany
`Street, Alexandria, Virginia before Walter Murphy, Notary Public.
`
`
`
`2
`
`

`

`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`IPR2022-00142
`Patent 8,293,742 B2
`
`
`
`
`
`
`
`
`
`P R O C E E D I N G S
`- - - - -
`JUDGE POLLOCK: Good morning -- or good afternoon,
`
`everyone. I'm Judge Pollock. With me in the hearing room is
`Judge Flax and joining us virtually is Judge Hulse.
`
`This is the final hearing in IPR2022-00142, involving
`Claims 1 to 6 of U.S. Patent Number 8,293,742.
`
`Petitioner is Slayback Pharma, LLC and Patent Owner is
`Eye Therapies, LLC.
`
`Let's begin with appearances. Counsel for Petitioner,
`would you please introduce yourself and your colleagues?
`
`MR. FREDERICKSON: Yes, Your Honor, good afternoon,
`Robert Frederickson on behalf of the Petitioner from the law
`firm of Goodwin Procter. With me is my colleague Linnea
`Cipriano, also from Goodwin Procter. And we also have Anjum
`Swaroop, Jeffrey Martin, and Deepti Jain from Dr. Reddy's
`Laboratories, the real party in interest.
`
`JUDGE POLLOCK: Good afternoon.
`
`MR. FREDERICKSON: Good afternoon.
`
`JUDGE POLLOCK: Patent Owner, please introduce
`yourself and who's with you.
`
`MR. DINER: Good afternoon, Judge Pollock, Bryan Diner
`for the Patent Owner, Eye Therapies. I'm joined by colleagues
`Caitlin O'Connell, Christina Yang, Justin Hasford; and,
`representing the Patent Owner, Kristi McIntyre and Bob Rowlett.
`
`
`
`
` 3
`
`

`

`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`IPR2022-00142
`Patent 8,293,742 B2
`
`JUDGE POLLOCK: Good afternoon.
`
`Ms. O'Connell, are you here as a LEAP practitioner?
`
`MS. O'CONNELL: Yes, Your Honor.
`
`JUDGE POLLOCK: Welcome.
`
`MS. O'CONNELL: Thank you.
`
`JUDGE POLLOCK: As we stated in our hearing order,
`
`each party will have 60 minutes of time to present their
`arguments. Because Patent Owner has notified us that we have a
`LEAP practitioner for today's argument, Patent Owner will have
`an additional 15 minutes of argument time.
`
`The parties have also requested the hearing room be closed
`for a portion of the hearing so the parties may discuss
`confidential information. That request has been granted and we
`will close the hearing room at the end of the hearing to do so.
`
`The parties have been informed that Petitioner would like
`to reserve five of its 60 minutes and Patent Owner would like to
`reserve ten of its 75 minutes argument time to discuss any
`confidential information.
`
`Are those still the amounts of time the parties would like
`reserve; Petitioner?
`
`MR. FREDERICKSON: Yes for Petitioner.
`
`JUDGE POLLOCK: Mr. Diner?
`
`MR. DINER: Yes for Patent Owner.
`
`JUDGE POLLOCK: All right, then we will close the
`hearing room when there are 15 minutes left in the hearing. For
`
`
`
`
` 4
`
`

`

`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`IPR2022-00142
`Patent 8,293,742 B2
`
`the public portion of the hearing, we'll start with the Petitioner,
`then hear Patent Owner's response; then, assuming Petitioner and
`Patent Owner both reserve any of that original time, we will hear
`Petitioner's rebuttal and, finally, Patent Owner's surrebuttal.
`
`Once the public portion of the hearing is complete, we will
`take a quick break to close the hearing room, during which that
`time anyone who is not permitted to hear confidential
`information under the protective order will leave the hearing
`room and the IT technician will close the public line. It is up to
`the parties and their representatives to determine who is
`authorized to remain.
`
`When we resume the hearing, as we discussed during the
`prehearing conference, we will hear first from Petitioner and
`then Patent Owner, and then Petitioner's rebuttal and, finally,
`Patent Owner's rebuttal.
`
`We have your slides. We have received both sides'
`objections to those slides and we will address those quickly here.
`
`Regarding Petitioner's objections to Slides 2 and 72 for
`citing evidence that's subject to Petitioner's motion to exclude,
`we will take those objections under advisement pending the
`outcome of that motion. For now, Patent Owner may rely on
`those slides during today's argument.
`
`Patent Owner, when you come to Slides 2 and 72, would
`you please note that they are subject to those objections as a
`reminder to the panel.
`
`
`
`
` 5
`
`

`

`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`IPR2022-00142
`Patent 8,293,742 B2
`
`MR. DINER: Yes, Your Honor.
`
`JUDGE POLLOCK: Regarding Petitioner's new argument
`
`objections, those objections are denied as we can determine for
`ourselves whether the argument is new.
`
`Regarding Patent Owner's objections that Petitioner's slides
`misstate whether an issue is disputed, those objections are denied
`as Patent Owner can address the dispute during today's argument.
`
`Both parties are cautioned not to interrupt opposing
`counsel's presentation, but may briefly enter any additional
`objections during a break or at the end of an opposing party's
`presentation.
`
`As a reminder, please remember to be explicit when you're
`referring to any slides on the screen, as Judge Hulse cannot see
`what's being transcript and so that the transcript is clear. In
`addition, Judge Flax and I are often looking at the slides on our
`own screens and will not be necessarily looking at the slides on
`the panels, so please do make sure you refer to them by number.
`
`Are there any questions at this time?
`
`MR. DINER: No, Your Honor.
`
`MR. FREDERICKSON: Not from Petitioner.
`
`JUDGE POLLOCK: Petitioner, you have 55 minutes of
`public argument time, will you be reserving any time for the
`public portion of your argument?
`
`MR. FREDERICKSON: Yes, Your Honor, 15 minutes.
`
`JUDGE POLLOCK: Okay, Patent Owner, you have 65
`
`
`
`
` 6
`
`

`

`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`IPR2022-00142
`Patent 8,293,742 B2
`
`minutes of public argument time, will you be reserving any time
`for the public portion of your argument?
`
`MR. DINER: I'm sorry --
`
`JUDGE POLLOCK: Would you like to reserve time for the
`public portion of your argument?
`
`MR. DINER: I will do another at least five --
`
`JUDGE POLLOCK: Five?
`
`MR. DINER: -- so, actually, Judge Pollock, what we're
`going to probably do is wait and see, but generally speaking, 15
`minutes that we'll reserve, and probably five will go to --
`between five and ten will go to the surrebuttal and maybe less
`than seven will go to the confidentiality.
`
`JUDGE POLLOCK: Okay. All right, my colleagues and I
`will do our best to keep track of the time, but we suggest that the
`parties do the same. And please do not hesitate to speak up if
`you believe we have miscalculated the time.
`
`So --
`
`JUDGE FLAX: Fifty five to begin with for them?
`
`JUDGE POLLOCK: Fifty five to begin with for Petitioner.
`
`JUDGE FLAX: Okay -- no --
`
`JUDGE POLLOCK: Oh, I'm sorry, no, no, no, no.
`
`JUDGE FLAX: Petitioner will have 40 --
`
`MR. FREDERICKSON: Forty.
`
`JUDGE POLLOCK: Forty.
`
`JUDGE FLAX: -- and then 55 for Patent Owner.
`
`
`
`
` 7
`
`

`

`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`IPR2022-00142
`Patent 8,293,742 B2
`
`JUDGE POLLOCK: Yeah.
`
`JUDGE FLAX: Okay, gotcha.
`
`JUDGE POLLOCK: Higher math.
`
`JUDGE FLAX: There's a lot of numbers going here.
`
`(Pause.)
`
`JUDGE POLLOCK: Judge Hulse seems to be ready and
`
`we're ready on the timer.
`
`Petitioner, please begin.
`
`MR. FREDERICKSON: Thank you very much, Your
`Honors. Again, Robert Frederickson on behalf of the Petitioner.
`
`There are three general topics I'd like to address during the
`first 40 minutes of this presentation, the first of which is that the
`Ground 1, Gil, discloses the administration of low concentrations
`of brimonidine to patients suffering from red eye by virtue of the
`radial keratotomy surgery that they have undergone, and that
`disclosure inherently anticipates Claims 1 and 2 of the '742
`patent.
`
`Number two, all of the asserted claims of the '742 patent
`should be found to be obvious in view of the prior art cited in the
`petition. For this portion of the argument, I'll be focusing on
`Claim 3 as the bellwether claim, so to speak, because it contains
`all of the limitations of Claims 1 and 2, and adds only a range of
`pHs that were already captured by prior art brimonidine products
`on the market.
`
`And, finally, the third topic I hope to address is Patent
`
`
`
`
` 8
`
`

`

`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`IPR2022-00142
`Patent 8,293,742 B2
`
`Owner's evidence of secondary considerations and why Patent
`Owner has failed to establish that there is the appropriate nexus
`between its proffered evidence and some of the flaws within that
`evidence.
`
`So, with that introduction, I'd like to turn to Ground 1 and
`Slide Number 7, which is the recitation of the key limitations
`from Claims 1 and 2 of the '742 patent.
`
`Now, based on where things stood at the conclusion of the
`papers, from Petitioner's perspective, two of the five limitations
`at issue were undisputed, and I'd like to focus particularly on
`limitation 1.1 consisting essentially of administering
`brimonidine. At no point during the proceedings, at least on the
`written record, did Patent Owner suggest that Gil failed to
`disclose this limitation. That was the basis of the objection that
`we launched to some of the slides that we received and we would
`encourage the Board to look at the -- to the extent the Patent
`Owner in this particular proceeding and this argument argues
`that there's any dispute with respect to limitation 1.1, that was
`not a dispute that was presented at any point prior to today in the
`submission of the demonstratives.
`
`After that, the three limitations that were disputed in the
`papers are the preamble and then two claim construction
`disputes, the construction of the phrase "ocular condition" in
`limitation 1.2 and the meaning of the phrase "about 0.025
`percent."
`
`
`
`
` 9
`
`

`

`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`IPR2022-00142
`Patent 8,293,742 B2
`
`I'm going to start with the preamble, "A method for
`
`reducing eye redness."
`
`Now, during the prehearing conference call we had with the
`Board there were some questions about what does that mean, a
`method for reducing eye redness, and is it in fact a limitation.
`
`Throughout this proceeding, the Petitioner treated and
`assumed that the preamble "A method for reducing eye redness"
`was a limitation. We presented evidence about how Gil
`disclosed inherently the method for reducing eye redness by
`virtue of the fact that it disclosed the administration of low
`concentrations of brimonidine for purposes of, among other
`things, treating neurogenic inflammation, which the Board
`correctly found to be a proximal cause of eye redness.
`
`JUDGE FLAX: Counsel, if the preamble is a limitation, I
`know that you've also argued, at least in your reply brief, that
`there's no efficacy limitation to these claims, how does the
`preamble fit in? What kind of a limitation is it if it isn't the
`limitation, what is it limiting?
`
`MR. FREDERICKSON: So I think the parties largely
`agree, and I'll go to Slide 15, because the Board's decision in the
`Mylan v. Regeneron case is particularly instructive where there
`was a similar type of debate.
`
`And so, to answer Your Honor's question, in method-of-
`treatment claims, when courts have found that a method for
`achieving some therapeutic benefit is a limitation, the ordinary
`
`
`
`
` 10
`
`

`

`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`IPR2022-00142
`Patent 8,293,742 B2
`
`meaning of that is -- for reducing eye redness, in this case --
`means that the drug is being administered for the intentional
`purpose of reducing eye redness. It's an administration of the
`drug for the purposes of achieving a specific effect.
`
`That is not to say that it will actually work in every patient
`because, A, that's not required by the claims and, B, it's not
`really commensurate with how treating physicians will treat a
`patient. They don't treat and administer drugs knowing that a
`particular drug will work all the time.
`
`JUDGE FLAX: Does eye redness have to exist in the
`patient?
`
`MR. FREDERICKSON: Some baseline form of eye redness
`does need to exist in the patient and that's why Gil in particular
`would inherently anticipate that limitation because the evidence,
`certainly from Petitioner's expert, Dr. Sher, has established that
`eye redness necessarily presents during radial keratotomy
`surgery. And that's one of the fundamental disputes between the
`parties is whether and to what extent eye redness does appear
`during radial keratotomy surgery, and I can go to Slide 11.
`
`
`JUDGE HULSE: Before you move on, I have a
`question. So when you're talking about intent to reduce eye
`redness, how does that factor into an inherency analysis where, if
`Gil is only teaching reducing pain, how is that -- how are they
`intending to reduce eye redness?
`
`MR. FREDERICKSON: A couple of reactions to that, Your
`
`
`
`
` 11
`
`

`

`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`IPR2022-00142
`Patent 8,293,742 B2
`
`Honor. First, we would dispute the characterization that Gil is
`only intending to reduce pain. As the Board found in the
`institution decision, Gil discloses a method for treating both pain
`and neurogenic inflammation by virtue of administering low
`concentrations of brimonidine.
`
`And so, with respect to Gil in particular, that reference
`does teach the treatment of neurogenic inflammation, which the
`Board correctly found to be a proximal cause of redness and
`pain.
`
`We acknowledge that the focus -- certainly the focus of
`Example 1 in Gil is the treatment -- the primary readout is a
`treatment of pain readout, but very importantly Example 1 also
`refers to the monitoring of symptoms of ocular inflammation.
`And I can show that on Slide Number 8.
`
`At the bottom, in Example 1, it says "Efficacy is assessed
`by evaluation by pain intensity, pain relief, subjective global
`analgesic efficacy. Symptoms of ocular inflammation (burning,
`stinging, tearing, etc.) are also recorded."
`
`And what Dr. Sher testified is that a person of ordinary
`skill in the art, having read the entire disclosure of Gil and
`seeing that reference to the monitoring of ocular inflammation, a
`person would have immediately understood that the inventors of
`the '553 patent expected to see a difference in a patient's eyes.
`
`So, Judge Hulse, with respect to the characterization of Gil,
`we would dispute and encourage the Board to stick with the
`
`
`
`
` 12
`
`

`

`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`IPR2022-00142
`Patent 8,293,742 B2
`
`original findings in the institution decision that Gil is not limited
`to the treatment of pain.
`
`The second response to your question is more of the legal
`issue. How could a prior art anticipate an intent when that intent
`hadn't been recognized in the prior art? And that's the entire
`reason the doctrine of inherency exists, it's because it prevents
`patent owners or patentees from recognizing incidental or new
`benefits from prior art methods that have already existed.
`
`So Gil certain discloses, if we take out all the references to
`neurogenic inflammation, we take out all the references to
`redness throughout the disclosure of Gil, and if we assume that it
`only discloses the treatment of pain, that is still enough for there
`to be inherency of a method for reducing eye redness. And the
`reason for that is because redness and pain present
`simultaneously by virtue of the radial keratotomy surgery that's
`being done.
`
`And so even if Gil was exclusively focused on the
`treatment of pain, that method of administration, inherently, is
`also treating the redness components of radial keratotomy
`surgery. And we know that from Dr. Sher's testimony, on Slide
`11, that radial keratotomy surgery necessarily causes eye
`redness.
`
`And what Dr. Sher explained is that the figure on the right -
`hand side, that's a figure from Dr. Noecker, Patent Owner's
`expert, and what that figure shows is what radial keratotomy
`
`
`
`
` 13
`
`

`

`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`IPR2022-00142
`Patent 8,293,742 B2
`
`surgery is, which is something that both parties agree. It's a
`correction to the cornea that is made -- that is offered for the
`purposes of improving eyesight and, to do that, the
`ophthalmologist makes a series of precise incisions into the
`tissue. Those tissue -- that tissue damage, as Dr. Sher explains,
`produces this inflammatory reaction that produces substances in
`the eye that necessarily present as redness.
`
`And that makes sense. The eye is being mechanically held
`in place, there is damage, acute damage by virtue of the fact of a
`series of precise incisions to the tissue, the delicate tissue in the
`cornea. That incision will trigger this inflammatory cascade that
`results in both redness and pain.
`
`And so, by virtue of even just treating the pain, the
`administration of brimonidine will also be treating the redness by
`virtue of its inherent vasoconstricting properties.
`
`Now --
`
`JUDGE HULSE: But what about the testimony that Patent
`Owner has cited from Dr. Sher saying that you can have
`inflammation without redness, what is your response to that?
`
`MR. FREDERICKSON: We address that on Slide 12.
`
`As a general matter and in the abstract, those are correct
`statements. Outside of the context of radial keratotomy, you can
`have inflammation that produces pain and you can have
`inflammation that produces redness. And Dr. Sher, that was
`what Dr. Sher acknowledged in the abstract and as general
`
`
`
`
` 14
`
`

`

`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`IPR2022-00142
`Patent 8,293,742 B2
`
`propositions, but Dr. Sher never conceded that radial keratotomy
`does not necessarily result in redness. We've put on his
`declaration and his deposition transcript and in both instances
`Dr. Sher repeatedly said all radial keratotomy patients have some
`degree of eye redness after the procedure.
`
`During his deposition: I have never seen a patient who I've
`cut the cornea on, for that matter, or done a cataract surgery on,
`any of these procedures, who have not had some eye redness,
`some tearing, some irritation symptoms after the surgical
`procedure. That's my experience.
`
`JUDGE HULSE: Did you ask those questions -- sorry to
`interrupt -- did you ask those questions of Dr. Noecker?
`
`MR. FREDERICKSON: Did we -- so Dr. Noecker
`presented it more in the abstract, nothing specific to radial
`keratotomy and Dr. Noecker's experiences with radial keratotomy
`specifically.
`
`JUDGE HULSE: But on cross-examination you didn't ask
`him whether he's ever had any LASIK patients who haven't
`experienced eye redness, or any sort of question like that?
`
`MR. FREDERICKSON: No, that's not in the record, Your
`Honor.
`
`Now, what Dr. Sher testified -- and this notion that Dr.
`Sher admitted something about radial keratotomy surgery, that
`testimony is on pages 113 and 114, which stands for the
`unremarkable proposition that radial keratotomy is intended to
`
`
`
`
` 15
`
`

`

`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`IPR2022-00142
`Patent 8,293,742 B2
`
`make precision incisions in the cornea, which is avascular. So
`that was Dr. Noecker, sort of the framework with which Dr.
`Noecker presented the evidence was that the cornea is avascular
`and, therefore, by making the incisions in the cornea, the surgeon
`would not necessarily expect redness to result because there's no
`blood vessels in the cornea, but that misses the larger point and
`Dr. Noecker never referred to that by producing that -- by
`making those incisions, creating that inflammatory reaction, the
`eye is naturally going to produce substances that result in
`redness.
`
`And so there's two ships passing in the night, so to speak,
`between what Dr. Noecker has testified as to the reason that eye
`redness does not necessarily present and Dr. Sher's evidence that
`the eye redness will necessarily present because and by virtue of
`this inflammatory reaction.
`
`JUDGE POLLOCK: Mr. Frederickson, I'm a little puzzled
`by the interaction between your interpretation of the preamble
`and your inherency case.
`
`If, as I think you said, that the preamble only requires an
`intent to treat redness, why do we have to go so far as to find
`that every patient would have redness? I mean, if redness is a
`reasonably- expected outcome for radial keratotomy; why doesn't
`that cover the intent to treat?
`
`MR. FREDERICKSON: That's a fair question, Your Honor,
`and I agree with you that Petitioner certainly does not take on or
`
`
`
`
` 16
`
`

`

`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`IPR2022-00142
`Patent 8,293,742 B2
`
`think it needs to prove that every single patient has to suffer
`from radial keratotomy surgery. Rather, the standard set out and
`we've cited in the paper is that a limitation -- and this is Slide 13
`-- a limitation where the entire invention is inherent and in the
`public domain if it is the natural result flowing from the explicit
`disclosure in the prior art.
`
`So it's not Petitioner's burden to disprove every possibility
`about what an individual patient may or may not suffer from or
`what their reactions may or may not be. These are biological,
`complex biological systems and that would be an impossible
`burden, I think, in any sort of method-of-treatment case for a
`petitioner to meet. Rather, the burden only requires that it is the
`natural result flowing from the explicit disclosure.
`
`And so what the explicit disclosure in Gil is is that patients
`are undergoing this acute damage to the delicate tissue in the
`eye, the precision incisions, that precision incision creates a
`cascade of inflammatory reactions, that's the natural response to
`damage to the eye, the cornea, and that cascade of natural
`inflammatory reactions results in redness, it also results in pain.
`
`And so what the Gil's teaching is that the natural result
`from radial keratotomy surgery is pain and redness. And by
`administering brimonidine, we know, by virtue of the Patent
`Owner's own admissions, that the low concentrations of
`brimonidine, its inherent function in the surface of the eye as a
`vasoconstrictor and the natural result of applying a
`
`
`
`
` 17
`
`

`

`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`IPR2022-00142
`Patent 8,293,742 B2
`
`vasoconstrictor to an inflamed eye that presents as redness is a
`reduction in that redness.
`
`So I agree with the premise of Your Honor's questions. We
`don't have to disprove it, but there was some suggestion in Patent
`Owner's paper that natural results need to be inevitable and like
`the only consequence of a particular -- that's not the burden, but
`even if it were and even if it was more rigorous than we believe
`it is, the evidence establishes that this surgery results in redness
`and the administrations of the low concentrations of brimonidine
`treat that.
`
`If the Board had any other questions about the preamble, I
`was going to move on to a couple of the other limitations in
`Ground 1.
`
`So the other two principal arguments are claim construction
`arguments that I hope to address relatively briefly, the first is
`ocular condition and the meaning of ocular condition, and the
`second is the limitation about 0.025 percent.
`
`I'll turn to Slide 17, which just summarizes the state of play
`with respect to the two competing constructions for ocular
`condition.
`
`The reality is there's three fundamental problems with what
`Patent Owner is trying to do and they all run afoul of the same
`rule of claim construction. Patent Owner is trying to read in a
`series of limitations that appear nowhere in the specification to
`narrowly define ocular condition to get around the prior art, get
`
`
`
`
` 18
`
`

`

`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`IPR2022-00142
`Patent 8,293,742 B2
`
`around Gil. Patent Owner is trying to read in a causation
`requirement that the condition causes hyperemia; that doesn't
`appear in the claim language and isn't supported in the
`specification.
`
`And then Patent Owner is trying to read in two negative
`limitations: ocular condition does not include subconjunctival
`hemorrhage and ocular condition does not include the effects of
`radial keratotomy.
`
`There's no support for any of those negative limitations in
`the specification and so the Board shouldn't read them in; rather,
`as the Board found in the institution decision and we set forth in
`our papers, the definition of ocular condition is quite broad and
`quite all-encompassing.
`
`The second primary claim construction dispute -- and I'll
`turn to Slide 21 -- involves the meaning phrase "about 0.025%."
`And what the Board found correctly, relying on the Federal
`Circuit's ruling in the institution decision, in Slide 22, is that
`"When 'about' is used as part of a numeric range, 'the use of the
`word 'about' avoids strict numerical boundaries to the specified
`parameter."
`
`That's the entire meaning of the word "about" is to -- let's
`avoid putting strict lines around what numbers fall within or
`around a particular number, but let's look to the criticality of the
`invention.
`
`There's a lot of space in the papers talking about these
`
`
`
`
` 19
`
`

`

`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`IPR2022-00142
`Patent 8,293,742 B2
`
`limitations and what is in and not in the specification, and I only
`want to highlight one point from the papers we received from
`Patent Owner and the declaration that its expert, Dr. Noecker,
`submitted, and I'll go to Slide 28.
`
`So on Slide 28 we've put two of the figures from the '742
`patent on the screen, on the left is Figure 2 and on the right is
`Figure 6. And Dr. Noecker, with particular emphasis on Figure
`6, points to these as being something from which a person of
`ordinary skill in the art would deduce some level of criticality,
`some difference, some meaningful clinical difference between
`five one thousandths of a percentage point to brimonidine in an
`eye drop.
`
`Simply put, first of all, there's nothing in the specification
`for why we would jump straight to Figure 6 or a person of
`ordinary skill in the art would jump straight to Figure 6 and not
`look towards Figure 2, which shows no meaningful differences
`between whatever 0.025 percent is and 0.03 percent might be, so
`we can't know why we elevate Figure 6 -- or Dr. Noecker
`elevates Figure 6 over Figure 2, but then we look at Figure 6; it's
`entirely qualitative. There's no legend, there's data, there's no
`hash marks, there's no error bars, there's no standard deviation,
`there are no data points; the lines have been smoothed, so we
`have no understanding of whether these were precise
`measurements and, if they were precise measurements, where
`they were taken from.
`
`
`
`
` 20
`
`

`

`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`IPR2022-00142
`Patent 8,293,742 B2
`
`Dr. Noecker admitted in his deposition that he didn't know
`
`whether this came from -- this wasn't real clinical data.
`
`And the axes, the axes are oriented in a way that they're
`not linear because of the distance between the spaces, they're not
`logarithmic because of the distances between the spaces. And so
`the notion that a person of ordinary skill in the art, the fact that
`Dr. Noecker would advance a position that an ophthalmologist, a
`person of ordinary skill in the art, would look at these figures
`that are entirely qualitative and draw such a precise quantitative
`understanding from them, it's just -- it's not a credible position,
`particularly when we think about the administration of eye drops
`normally.
`
`Dr. Sher explained this in his declaration. This is an
`imprecise application of a medicine that is often self-
`administered and there's no principled way an individual person
`can control how hard he or she might squeeze the eye drop, how
`much gets into the eye, how much tear may wash some of that
`eye drop away, to make -- for a person of ordinary skill in the art
`to draw any principled conclusion about criticality of five one
`thousandths of a percentage point.
`
`And, for those reasons, we would encourage Board to reject
`the claim construction opinions that are offered by Patent Owner
`in this case and find that Gil does in fact anticipate Claims 1 and
`2 of the '742 patent.
`
`I'll move on to obviousness now, unless there were any
`
`
`
`
` 21
`
`

`

`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`IPR2022-00142
`Patent 8,293,742 B2
`
`questions about Ground 1 or Gil that the Board would like me to
`address.
`
`Slide 36. On Slide 36, we've tried to present an overview
`of what was being -- what the state of the prior art was to the
`person of ordinary skill in the art as of the relevant date here.
`
`We have the disclosure of Gil, which discloses the
`administration of low doses of brimonidine for the purposes of
`treating, among other things, ocular inflammation that presents
`as redness, that's in Example 4, ocular response characteristics of
`neurogenic inflammation include redness. And then, on top of
`that disclosure in Gil, prior art article after prior art article
`reinforces the vasoconstrictive properties of brimonidine and
`points the person of ordinary skill in the art to using low doses
`of brimonidine.
`
`The most significant would be Norden 2002, which is
`Exhibit 1006. Norden 2002 is a journal article that reports a
`clinical study of the application of 0.2 percent of brimonidine to
`patients that were under LASIK surgery. And the conclusion of
`Norden 2002 is unequivocal. We'll put that on the screen at
`Slide 38.
`
`What Norden concluded was that brimonidine administered
`before LASIK may significantly reduce subconjuctival
`hemorrhage and reduce the amount of hyperemia. All of the eyes
`had some hyperemia; however, the hyperemia was lower,
`statistically significantly lower in the brimonidine group.
`
`
`
`
` 22
`
`

`

`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`IPR2022-00142
`Patent 8,293,742 B2
`
`Norden also reinforces the general consensus upon persons
`
`of ordinary skill in the art at the time that brimonidine, which is
`an alpha- 2 adrenergic agonist, was known to be a, quote, "strong
`vasoconstrictor." It was so widely accepted, its vasoconstricting
`properties, that just anecdotally some refractive surgeons now
`ad

This document is available on Docket Alarm but you must sign up to view it.


Or .

Accessing this document will incur an additional charge of $.

After purchase, you can access this document again without charge.

Accept $ Charge
throbber

Still Working On It

This document is taking longer than usual to download. This can happen if we need to contact the court directly to obtain the document and their servers are running slowly.

Give it another minute or two to complete, and then try the refresh button.

throbber

A few More Minutes ... Still Working

It can take up to 5 minutes for us to download a document if the court servers are running slowly.

Thank you for your continued patience.

This document could not be displayed.

We could not find this document within its docket. Please go back to the docket page and check the link. If that does not work, go back to the docket and refresh it to pull the newest information.

Your account does not support viewing this document.

You need a Paid Account to view this document. Click here to change your account type.

Your account does not support viewing this document.

Set your membership status to view this document.

With a Docket Alarm membership, you'll get a whole lot more, including:

  • Up-to-date information for this case.
  • Email alerts whenever there is an update.
  • Full text search for other cases.
  • Get email alerts whenever a new case matches your search.

Become a Member

One Moment Please

The filing “” is large (MB) and is being downloaded.

Please refresh this page in a few minutes to see if the filing has been downloaded. The filing will also be emailed to you when the download completes.

Your document is on its way!

If you do not receive the document in five minutes, contact support at support@docketalarm.com.

Sealed Document

We are unable to display this document, it may be under a court ordered seal.

If you have proper credentials to access the file, you may proceed directly to the court's system using your government issued username and password.


Access Government Site

We are redirecting you
to a mobile optimized page.





Document Unreadable or Corrupt

Refresh this Document
Go to the Docket

We are unable to display this document.

Refresh this Document
Go to the Docket