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`BEFORE THE PATENT TRIAL AND APPEAL BOARD
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`ALPHATEC HOLDINGS, INC. and
`ALPHATEC SPINE, INC.
`Petitioners
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`V.
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`NUVASIVE, INC.
`Patent Owner
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`Case: IPR2019—00362
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`U.S. Patent No. 8,361,156
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`PETITIONER POWER OF ATTORNEY PURSUANT TO
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`'
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`37 CPR. § 42.10(b) FOR PETITION FOR INTER PARTES REVIEW
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`Mail Stop PATENT BOARD
`Patent Trial and Appeal Board
`United States Patent and Trademark Office
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`PO Box 1450
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`Alexandria, Virginia 22313—1450
`Submitted Electronicalbz via the EZE Patent Review Processing System
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`
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`Petitioners, ALPHATEC HOLDINGS, INC. and ALPHATEC SPINE, INC.
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`appoint the following as their attorneys to prosecute and to transact all business in
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`the Patent Trial and Appeal Board of the United States Patent and Trademark
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`Office in connection with the above-captioned Petition for Inter Partes Review:
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`Andrew R. Sommer (Reg.# 53,932) - Lead Counsel
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`WINSTON & STRAWN LLP
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`1700 K Street, NW.
`Washington, DC 20006—3817
`Tel: (202) 282-5000
`Fax: (202) 282-5100
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`Nimalka R. Wickramasekera (pro hac vice to be filed) — Back-Up Counsel
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`WINSTON & STRAWN LLP
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`333 South Grand Avenue
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`38th Floor
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`Los Angeles, CA 90071—1543
`Tel: (213) 615-1700
`Fax: (213) 615—1750
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`David P. Dalke, Ph.D (Reg #40,980) — Back-Up Counsel
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`WINSTON & STRAWN LLP
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`333 South Grand Avenue
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`38th Floor
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`Los Angeles, CA 90071-1543
`Tel: (213) 615—1700
`Fax: (213) 615-1750
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`[SIGNATURE PAGE FOLLOWS]
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`2
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`The individual signing below has the authority to execute this document on behalf
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`of ALPHATEC HOLDINGS, INC. and ALPHATEC SPINE, INC.
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`
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`(”SW MV7M_/1.143;?20/0”
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`Date
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` 1
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`ature
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`7: 60M Mai/”Shad
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`Print Name
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` 5664,1425)
`em
`a
`Title
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`[
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