`Case IPR 2014-00541
`U.S. Patent No. 8,217,902
`
`UNITED STATES PATENT AND TRADEMARK OFFICE
`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`
`WINTEK CORPORATION
`Petitioner,
`
`V.
`
`TPK TOUCH SOLUTIONS INC.
`Patent Owner
`
`Case IPR 2013-00567
`Case IPR 2014-00541
`U.S. Patent No. 8,217,902
`
`SUPPLEMENTAL AFFIDAVIT OF DEREK TANG
`
`TPK 2027
`Wintek v. TPK
`
`
`
`Case IPR 2013-00567
`Case IPR 2014-00541
`U.S. Patent No. 8,217,902
`
`1.
`
`I, Derek J. Tang, am more than twenty-one years of age, am
`
`competent to present this affidavit, and have personal knowledge of the facts set
`
`forth herein.
`
`2.
`
`This affidavit is given in support of Patent Owner TPK Touch
`
`Solutions, Inc.'s ("TPK") Motion for Pro Hac Vice Admission of Derek Tang.
`
`3.
`
`I am an associate at the law firm Quinn Emanuel Urquhart & Sullivan,
`
`LLP. I am an experienced litigating attorney and have been litigating cases
`
`for more than seven years. I have also been litigating patent cases for four years.
`
`4.
`
`I am a member in good standing of the State Bars of California and
`
`New York. I have never been suspended or disbarred from practice before any
`
`court or administrative body. No court or administrative body has ever denied my
`
`application for admission to practice before it. No court or administrative body has
`
`ever imposed sanctions or contempt citations on me.
`
`5.
`
`I have read and will comply with the Office Patent Trial Practice
`
`Guide and the Board's Rules of Practice for Trials set forth in part 42 of the Code
`
`of Federal Regulations.
`
`6.
`
`I understand that I will be subject to the USPTO Rules of Professional
`
`Conduct set forth in 37 C.F.R. §§ 11.101 et seq. and disciplinary jurisdiction under
`
`37 C.F.R. § 11.19(a).
`
`1
`
`
`
`Case IPR 2013-00567
`Case IPR 2014-00541
`U.S. Patent No. 8,217,902
`
`7.
`
`I am concurrently seeking pro hac vice admission to appear in a co-
`
`pending, related matter brought by Petitioner against Patent Owner, Case No.
`
`IPR2013-00568, in which Petitioner is also challenging claims of U.S. Patent No.
`
`8,217,902. I have not applied to appear pro hac vice in any other proceedings
`
`before the Office in the last three (3) years.
`
`8.
`
`I have an established familiarity with the subject matter at issue in this
`
`proceeding. I have litigated patent cases in the area of electrical engineering and
`
`electronic devices since 2010. I began representing and advising Patent Owner
`
`TPK in matters relating to patent strategy no later than 2013. In that time, I have
`
`become very familiar with U.S. Patent No. 8,217,902 ("the '902 Patent") and with
`
`its prosecution file history. In particular, I have assisted TPK in preparing its
`
`responses to the above-referenced petitions, as well as in the co-pending ex parte
`
`reexamination of the '902 Patent, Reexam Control No. 90/012,869.
`
`Sworn to and subscribed before me
`this 2') 4''day of August, 2014
`
`Not
`
`NORMAN MADDEN
`1,
`COMM # 1931701 (cid:9)
`SAN FRANCISCO COUNTY )),
`NOTARY PUBLIC-CALIFORNIA Z
`MY COMMISSION EXPIRES
`APR. 07, 2015
`
`2
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