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`IN THE UNITED STATES DISTRICT COURT
`EASTERN DISTRICT OF TEXAS
`MARSHALL DIVISION
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`SEAGEN INC.,
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`Plaintiff,
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`v.
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`DAIICHI SANKYO CO., LTD.,
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`Defendant, and
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`ASTRAZENECA PHARMACEUTICALS
`LP and ASTRAZENECA UK LTD.,
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`Intervenor-Defendants.
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`CASE NO. 2:20-cv-00337-JRG
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`DEFENDANTS’ NOTICE REGARDING PATENT TRIAL
`AND APPEAL BOARD’S INSTITUTION OF POST-GRANT REVIEW
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`Pursuant to the Court’s Standing Order Requiring Notice of Relevant Determinations from
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`Related Proceedings, dated May 28, 2015, Defendant Daiichi Sankyo Company, Limited and
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`Intervenor-Defendants AstraZeneca Pharmaceuticals LP and AstraZeneca UK Ltd. (collectively
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`“Defendants”) hereby notify the Court of the attached ruling of the Patent Trial and Appeal Board.
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`Case 2:20-cv-00337-JRG Document 491 Filed 02/17/23 Page 2 of 4 PageID #: 21406
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`Dated: February 17, 2023
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`By: /s/ Preston K. Ratliff II
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`Deron R. Dacus
`State Bar No. 00790553
`ddacus@dacusfirm.com
`THE DACUS FIRM, P.C.
`821 ESE Loop 323, Suite 430
`Tyler, Texas 75701
`Telephone: 903.705.1117
`Facsimile: 903.581.2543
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`J. Mark Mann
`State Bar No. 12926150
`mark@themannfirm.com
`G. Blake Thompson
`State Bar No. 24042033
`Blake@themannfirm.com
`MANN | TINDEL | THOMPSON
`300 West Main Street
`Henderson, Texas 75652
`Telephone: 903.657.8540
`Facsimile: 903.657.6003
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`Of Counsel:
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`Preston K. Ratliff II
`prestonratliff@paulhastings.com
`Ashley N. Mays-Williams
`ashleymayswilliams@paulhastings.com
`PAUL HASTINGS LLP
`200 Park Avenue
`New York, New York 10166
`Telephone: 212.318.6000
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`Jeffrey A. Pade
`jeffpade@paulhastings.com
`PAUL HASTINGS LLP
`2050 M Street NW
`Washington, DC 20036
`Telephone: 202.551.1700
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`Attorneys for Defendant Daiichi Sankyo
`Company, Limited
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`Case 2:20-cv-00337-JRG Document 491 Filed 02/17/23 Page 3 of 4 PageID #: 21407
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`Dated: February 17, 2023
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`By: /s/ David I. Berl
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`David I. Berl
`dberl@wc.com
`Jessamyn S. Berniker
`jberniker@wc.com
`Thomas S. Fletcher
`tfletcher@wc.com
`Jessica L. Pahl
`jpahl@wc.com
`Kathryn S. Kayali
`kkayali@wc.com
`Kevin Hoagland-Hanson
`khoagland-hanson@wc.com
`Andrew L. Hoffman
`ahoffman@wc.com
`Angela Gao
`agao@wc.com
`WILLIAMS & CONNOLLY LLP
`680 Maine Avenue SW
`Washington, DC 20024
`Telephone: 202.434.5000
`Facsimile: 202.434.5029
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`Jennifer Parker Ainsworth
`Texas State Bar No. 00784720
`jainsworth@wilsonlawfirm.com
`WILSON, ROBERTSON & CORNELIUS,
`P.C.
`909 ESE Loop 323, Suite 400
`Tyler, Texas 75701
`Telephone: 903.509.5000
`Facsimile: 903.509.5092
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`Attorneys for Intervenor-Defendants AstraZeneca
`Pharmaceuticals LP and AstraZeneca UK Ltd.
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`3
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`Case 2:20-cv-00337-JRG Document 491 Filed 02/17/23 Page 4 of 4 PageID #: 21408
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`CERTIFICATE OF SERVICE
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`The undersigned hereby certifies that all counsel of record who have consented to
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`electronic service are being served with a copy of this document via electronic mail on
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`February 17, 2023.
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`/s/ Preston K. Ratliff II
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