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`In re Inter Partes Review of:
`U.S. Patent No. 9,445,251
`Issued: September 13, 2016
`Application No.: 14/633,804
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`For: Method to Provide Ad Hoc and Password Protected Digital and Voice
`Networks
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`FILED VIA E2E
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`PETITIONER’S POWER OF ATTORNEY FOR
`PETITION FOR INTER PARTES REVIEW
`OF U.S. PATENT NO. 9,445,251
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`PETITIONER’S POWER OF ATTORNEY
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`Petitioner WhatsApp LLC (“Petitioner”) hereby appoints the below
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`Practitioners as its attorneys to transact all business before the Patent Trial and
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`Appeal Board of the United States Patent and Trademark Office connected with
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`the Petition for Inter Partes Review of U.S. Patent No. 9,445,251.
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`LEAD COUNSEL
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`BACKUP COUNSEL
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`Lisa K. Nguyen (Reg. No. 58,018)
`lisa.nguyen@lw.com
`Postal & Hand-Delivery Address:
`Latham & Watkins LLP
`140 Scott Drive
`Menlo Park, CA 94025
`Telephone: 650.470.4848
`Fax: 650.463.2600
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`Richard G. Frenkel (Reg. No. 47,578)
`rick.frenkel@lw.com
`Postal & Hand-Delivery Address:
`Latham & Watkins LLP
`140 Scott Drive
`Menlo Park, CA 94025
`Telephone: 650.463.3080
`Fax: 650.463.2600
`Jonathan M. Strang (Reg. No. 61,724)
`jonathan.strang@lw.com
`Postal & Hand-Delivery Address:
`Latham & Watkins LLP
`555 Eleventh Street, NW, Ste. 1000
`Washington, D.C. 20004-1304
`Telephone: 202.637.2362
`Fax: 202.637.2201
`Alan M. Billharz (Reg. No. 79,532)
`alan.billharz@lw.com
`Postal & Hand-Delivery Address:
`Latham & Watkins LLP
`555 Eleventh Street, NW, Ste. 1000
`Washington, D.C. 20004-1304
`Telephone: 202.637.2226
`Fax: 202.637.2201
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`Tiffany C. Weston (Reg. No. 79,469)
`tiffany.weston@lw.com
`Postal & Hand-Delivery Address:
`Latham & Watkins LLP
`555 Eleventh Street, NW, Suite 1000
`Washington, D.C. 20004-1304
`Telephone: 202.637.2197
`Fax: 202.637.2201
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`Theindividual signing below hasthe authority to execute this document on
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`behalf of Petitioner WhatsApp LLC.
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`Name:
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`Michelle Woodhouse
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`Title:
`Signature:
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`Associate General Counsel, IP Litigation
`/ rb L Wn _—
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`Date:
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`July 30, 2021
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