Exhibit 21
`Infringement of U.S. Patent 7,225,712 (“‘712 Patent”) by the Bosch GTS1041A REAXX
`Portable Jobsite Table Saw (“Bosch REAXX”)
`
`This chart describes infringement by the Bosch REAXX as an exemplary product. The
`Bosch REAXX infringes certain independent claims of the ‘712 Patent literally and under the
`doctrine of equivalents. The structure and operation of the Bosch REAXX are described in the
`following publicly available materials, cited herein:
`
` “Bosch GTS1041A REAXX™ Portable Jobsite Table Saw Takes User Safety to the
`Next Level, and Saves the Blade Too,” March 18, 2015, available at
`http://www.boschtools.com/AboutBoschTools/PressRoom/Pages/031815_reaxxsaw.aspx
`(“Bosch REAXX Product Announcement”)
`
` “Bosch REAXX Portable Jobsite Table Saw,” available at
`http://uncrate.com/stuff/bosch-reaxx-portable-jobsite-table-saw/ (“Bosch REAXX
`Product Review I”)
`
` “Bosch REAXX Table Saw GTS1041A Preview and Video,” available at
`http://www.protoolreviews.com/tools/power/corded/saws/bosch-reaxx-table-saw-
`gts1041a-preview/14811/ (“Bosch REAXX Product Review II”)
`
` “Bosch Takes Aim at SawStop,” available at http://www.toolsofthetrade.net/table-
`saws/bosch-takes-aim-at-sawstop o.aspx (“Bosch REAXX Preview”)
`
` “Q&A: Bosch REAXX Jobsite Table Saw,” available at
`http://www.columbiaforestproducts.com/2015/05/27/qa-bosch-reaxx-jobsite-table-saw/
`(“Bosch REAXX Q&A”)
`
` “Bosch Power Tools - REAXX Portable Jobsite Table Saw Product Video,” available at
`https://www.youtube.com/watch?v=nbDf2dpQVIY (“Bosch REAXX Product Video”)
`
`
` “Bosch Power Tools GTS1041A REAXX Portable Jobsite Table Saw,” available at
`https://www.youtube.com/watch?v=6xBrtiEZDTg (“Bosch REAXX Demo I”)
`
` “Bosch REAXX Table Saw GTS1041A,” available at
`https://www.youtube.com/watch?v=Ag XU2hYysA&feature (“Bosch REAXX Demo
`II”)
`
`The infringement analysis in this chart is preliminary, as it is restricted to reliance on
`publicly available information, and SawStop’s investigation into Respondents’ infringement is
`ongoing. SawStop reserves the right to provide additional theories under which Respondents’
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`SD3 Exhibit 2012 – Page 1
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`products infringe this patent, or evidence to support its current theories, upon obtaining
`discovery from Bosch.
`
`‘712 Patent
`Claim 8
`8 (preamble) A
`woodworking machine
`comprising:
`
`Bosch REAXX Saw
`
`The Bosch REAXX is a woodworking machine.
`
`See, e.g., Bosch REAXX Product Announcement:
`
` The Active Response Technology system on the REAXX table
`saw rapidly detects human flesh that comes in contact with the
`blade and drops the saw blade below the tabletop.
`
`
`See, e.g., Bosch REAXX Product Review I:
`
`
`
`See, e.g., Bosch REAXX Product Video:
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`SD3 Exhibit 2012 – Page 2
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`8(a) a working portion
`adapted to work when
`moving;
`
`
`The Bosch REAXX includes a working portion adapted to work when
`moving.
`
`See, e.g., Bosch REAXX Product Review I:
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`SD3 Exhibit 2012 – Page 3
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`Working ponion
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`
`See, e.g., Bosch REAXX Demo I:
`See, e.g., Bosch REAXX Demo 1:
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`Working portion
`
`
`See, e.g., Bosch REAXX Demo II:
`See, e.g., Bosch REAXX Demo II:
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`SD3 Exhibit 2012 — Page 4
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`SD3 Exhibit 2012 – Page 4
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`8(b) a detection
`system adapted to
`detect a dangerous
`condition between a
`person and the
`working portion by
`imparting an electric
`signal to the working
`portion and
`monitoring the electric
`signal for at least one
`change indicative of
`the dangerous
`condition;
`
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`
`
`The Bosch REAXX includes a detection system adapted to detect a
`dangerous condition between a person and the working portion by
`imparting an electric signal to the working portion and monitoring the
`electric signal for at least one change indicative of the dangerous
`condition.
`
`See, e.g., Bosch REAXX Product Announcement:
`
` The Active Response Technology system on the REAXX table
`saw rapidly detects human flesh that comes in contact with the
`blade and drops the saw blade below the tabletop.
`
`
`See, e.g., Bosch REAXX Product Review I:
`
`
` The Bosch REAXX Portable Jobsite Table Saw promises to do
`away with their finger-eating ways for good. It employs Active
`Response Technology — a series of advanced sensors and
`electronics — to detect when human flesh comes in contact
`with the blade and instantly drop the 10-inch saw blade below
`the tabletop.
`
`
`See, e.g., Bosch REAXX Q&A:
`
`
` Wood Works: How does the REAXX flesh-sensing technology
`work? What makes the REAXX different than the jobsite safety
`saw released last year by SawStop?
`
` Wilson: …The complexity of Bosch REAXX onboard control
`
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`5
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`SD3 Exhibit 2012 – Page 5
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`system is translated to an intuitive, easy-to-understand LED
`light panel that manages saw operation and status.
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`Green means the saw is ready for use.
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`Red means the saw is not ready and will not function until the
`user corrects an issue.
`
`Yellow flashing means the system is in bypass mode and will
`not react to an incident. This mode is used for cutting
`conductive materials that can potentially activate the Active
`Response Technology system.
`
` A
`
` blue light means the saw requires service.
`
`
`See, e.g., Bosch REAXX Product Video at 0:28-0:48.
`
`See, e.g., Bosch REAXX Demo I at 0:01-0:25.
`
`See, e.g., Bosch REAXX Demo II at 3:35-4:20, 8:28-9:10.
`
`The Bosch REAXX includes a reaction system associated with the
`detection system to cause a predetermined action to take place relative
`to the working portion upon detection of the dangerous condition.
`
`See, e.g., Bosch REAXX Product Announcement:
`
` The Active Response Technology system on the REAXX table
`saw rapidly detects human flesh that comes in contact with the
`blade and drops the saw blade below the tabletop.
`
`
`See, e.g., Bosch REAXX Product Review I:
`
`
` The Bosch REAXX Portable Jobsite Table Saw promises to do
`away with their finger-eating ways for good. It employs Active
`Response Technology — a series of advanced sensors and
`electronics — to detect when human flesh comes in contact
`with the blade and instantly drop the 10-inch saw blade below
`the tabletop.
`
`
`See, e.g., Bosch REAXX Product Review II:
`
`
` A couple of things happen simultaneously when the mechanism
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`8(c) a reaction system
`associated with the
`detection system to
`cause a predetermined
`action to take place
`relative to the working
`portion upon detection
`of the dangerous
`condition; and
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`SD3 Exhibit 2012 – Page 6
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`on the Bosch ReaXX table saw engages. … 1. The table saw
`does a quick check, recognizes the system is ready to go, and
`allows you to activate the saw 2. An event trigger is detected—
`namely, your finger or fingers touch the spinning saw blade 3.
`The sensor fires the piston which contacts a lever that retracts
`the blade into the table so quickly, it doesn’t even leave a mark
`on your finger….
`
`
`See, e.g., Bosch REAXX Preview:
`
`
` The new Bosch REAXX (for “reacts”) GTS1041A uses flesh-
`sensing technology to trigger a mechanism that retracts the
`blade below the table if the operator makes contact with the
`blade while it is spinning.
`
` During the demonstration a Bosch product manager held a
`bratwurst on a board and slid it into the spinning blade; the
`moment the wurst touched the blade, a mechanism in the saw
`dropped it below the table. It happened so quickly the wurst
`came away with little more than a scratch.
`
` To the observer, triggering the Bosch safety mechanism looks
`the same as triggering SawStop’s: flesh touches the spinning
`blade, there's a loud bang, and the blade suddenly “disappears”.
`
`
`See, e.g., Bosch REAXX Product Video at 0:28-0:48.
`
`See, e.g., Bosch REAXX Demo I at 0:01-0:25.
`
`See, e.g., Bosch REAXX Demo II at 8:28-9:10.
`The Bosch REAXX includes a motion detection system adapted to
`detect motion of the working portion and to disable the reaction system
`when the working portion is not moving.
`
`See, e.g., Bosch REAXX Preview:
`
`
` The new Bosch REAXX (for “reacts”) GTS1041A uses flesh-
`sensing technology to trigger a mechanism that retracts the
`blade below the table if the operator makes contact with the
`blade while it is spinning.
`
`See, e.g., Bosch REAXX Product Review II:
`
`
` A couple of things happen simultaneously when the mechanism
`on the Bosch ReaXX table saw engages. … 1. The table saw
`
`8(d) a motion
`detection system
`adapted to detect
`motion of the working
`portion and to disable
`the reaction system
`when the working
`portion is not moving.
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`SD3 Exhibit 2012 – Page 7
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`does a quick check, recognizes the system is ready to go, and
`allows you to activate the saw 2. An event trigger is detected—
`namely, your finger or fingers touch the spinning saw blade ….
`
`See, e.g., Bosch REAXX Demo II video, 3:20-4:20 (showing
`demonstrators moving their hands around/touching blade while
`powered up without the saw triggering, indicating that the reaction
`system is disabled when the blade is not moving).
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`SD3 Exhibit 2012 – Page 8