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`UNITED STATES PATENT AND TRADEMARK OFFICE
`_______________
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`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`_____________
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`WATSON LABORATORIES, INC.
`Petitioner
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`v.
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`UNITED THERAPEUTICS CORP.
`Patent Owner
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`
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`Patent No. 9,358,240
`Issue Date: June 7, 2016
`Title: TREPROSTINIL ADMINISTRATION BY INHALATION
`_______________
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`Inter Partes Review No. 2017-01621
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`PATENT OWNER’S NOTICE OF DEPOSITION OF
`CHRISTOPHER BUTLER UNDER 37 C.F.R. § 42.53
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`Pursuant to 37 C.F.R. § 42.53, please take notice that Patent Owner United
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`Therapeutics Corporation (“Patent Owner”), by and through its counsel, shall take
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`the deposition of Christopher Butler commencing May 31, 2018, starting at 10:00
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`a.m. PDT (or such other time as the parties may agree) at the offices of Winston &
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`Strawn LLP, 101 California Street, 35th Floor, San Francisco, CA.
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`The deposition will be conducted before an officer authorized to administer
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`oaths. The deposition will be recorded stenographically and/or videographically.
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`All counsel of record are invited to attend this deposition.
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`Date: May 15, 2018
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`2
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`Respectfully submitted,
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`/George E. Quillin /
`Stephen B. Maebius
`Registration No. 35,264
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`George E. Quillin
`Registration No. 32,792
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`Foley & Lardner LLP
`3000 K Street, N.W.
`Suite 600
`Washington, D.C. 20007
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`Shaun R. Snader
`Registration No. 59,987
`United Therapeutics Corporation
`1735 Connecticut Avenue, N.W.
`Second Floor
`Washington, DC 20009
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`Counsel for Patent Owner
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`CERTIFICATE OF SERVICE
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`The undersigned hereby certifies that a copy of the foregoing PATENT
`OWNER’S NOTICE OF DEPOSITION OF CHRISTOPHER BUTLER UNDER
`37 C.F.R. § 42.53, is being served on May 15, 2018, by filing this document
`through the PTAB E2E System as well as delivering copies via email to the
`following counsel for the Petitioner:
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`Michael K. Nutter (Reg. No. 44,979)
`WINSTON & STRAWN LLP
`35 W. Wacker Dr.
`Chicago, IL 60601
`Email: mnutter@winston.com
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`Andrew R. Sommer (Reg. No. 53,932)
`WINSTON & STRAWN LLP
`1700 K Street, N.W.
`Washington, DC 20006-3817
`Email: asommer@winston.com
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`Kurt A. Mathas
`WINSTON & STRAWN LLP
`35 W. Wacker Dr.
`Chicago, IL 60601
`Email: kmathas@winston.com
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`
`/George E. Quillin/
`Stephen B. Maebius
`Registration No. 35,264
`
`George E. Quillin
`Registration No. 32,792
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`Shaun R. Snader
`Registration No. 59,987
`
`Counsel for Patent Owner
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`4843-4467-9014.1
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`