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`BEFORE THE PATENT TRIAL AND APPEAL BOARD
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`KVK-TECH, INC.,
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`FLAT LINE CAPITAL, LLC
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`Petitioner,
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`V.
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`SILVERGATE PHARMACEUTICALS, INC. El
`Patent Owner
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`US. Patent No. 9,463,183
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`Issue Date: Oct. 11, 2016
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`Inventors: Gerald L. Mosher, David W. Miles
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`Title: LISINOPRIL FORMULATIONS
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`Case Number: Unassigned
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`Power of Attorney for Petitioner KVK-Tech, Inc.
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`Pursuant to 37 C.F.R. § 42.10(b), Petitioner KVK-Tech, Inc. hereby
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`appoints the practitioners associated with Kroub, Silbersher & Kolmykov
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`PLLC, Customer Number 121957, including the following lead and backup
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`counsel, as its attorneys to transact all business in the United States Patent &
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`Trademark Office associated with any Post Grant Review of US. Patent No.
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`9,463,183:
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`Lead Counsel
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`Back-Up Counsel
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`Zachary Silbersher (Reg. No. 62,090) Gaston Kroub (Reg. No. 51,903)
`Kroub, Silbersher & Kolmykov PLLC Kroub, Silbersher & Kolmykov PLLC
`305 Broadway, 7th Floor
`305 Broadway, 7th Floor
`New York, NY 10007
`New York, NY 10007
`Telephone: 212-323-7442
`Telephone: 212—323—7442
`E-mail: zsilbersher@kskiplaw.com
`E-mail: gkroub I kskiplaw.com
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`The individual signing below has the authority to execute this document on behalf
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`of petitioner KVK-Tech, Inc.
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`Dated:
`Juli,
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`ID
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`,2017
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`CERTIFICATE OF SERVICE
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`The undersigned hereby certifies that a copy of this Power of Attorney for
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`Petitioner KVK-Tech, Inc., together with all exhibits, has been served Via FedEx, a
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`means at least as fast and reliable as Priority Mail Express®, on July 10, 2017
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`upon the following correspondence address of record for Patent Owner:
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`Wilson, Sonsini, Goodrich & Rosati
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`650 Page Mill Road
`Palo Alto, CA 94304-1050
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`Dated: July 10, 2017
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`/Zachary D. Silbersher/
`Zachary D. Silbersher
`Reg. No. 62,090
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