`
`IPR2021~00329
`
`Patent 8,391,298
`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
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`CISCO SYSTEMS, INC.,
`
`Petitioner,
`
`V.
`
`ESTECH SYSTEMS, INC,
`
`Patent Owner
`
`Inter Partes Review No. IPR2021-00329
`
`Patent No. 8,391,298
`
`ESTECH SYSTEMS, INC.’S
`POWER OF ATTORNEY
`
`
`
`IPR2021—00329
`
`Patent No. 8,391,298
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`Estech Systems, Inc. hereby appoints the following attorneys to represent
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`Patent Owner in the aboveucaptioned inter partes review proceeding and to transact
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`all business in the Patent Trial and Appeal Board of the U.S. Patent and Trademark
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`Office connected therewith:
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`Lead Counsel:
`
`Todd E. Landis
`
`WILLIAMS SIMONS & LANDIS PLLC
`
`
`
`Backup Counsel:
`
`Additional Backup
`Counsel:
`
`
`
`2633 McKinney Ave., Suite 130
`Dallas, TX 75204
`Tel: (512) 543-1357
`Fax: (512) 793-9575
`tlandis@wsltrial.com;
`estechcounsel@wsltrial.com
`USPTO Registration No. 44,200
`
`John Wittenzellner
`
`WILLIAMS SIMONS & LANDIS PLLC
`
`
`
`
`1735 Market Street, Suite A #453
`Philadelphia, PA 19103
`Tel: (512)543-1373
`Fax: (512) 793-9575
`johnw@wsltrial.com
`USPTO Registration No. 61,662
`
`
`jC. Matthew Rozier
`WILLIAMS SIMONS & LANDI S PLLC
`
`T
`
`1550 Larirner Street, Suite 1067
`
`Denver, CO 80202
`Tel: (512) 717-6583
`Fax: (512) 793-9575
`mrozier@wsltrial.com
`USPTO Registration No. 63,429
`
`Additional Backup
`Counsel:
`
`Chad Ennis
`WILLIAMS SIMONS & LANDIS PLLC
`
`4|
`
`
`
`IPR2021-00329
`
`Patent No. 8,391,298
`
`
`
`327 Congress Avenue, Suite 490
`Austin, TX 78701
`
`Tel: (512) 543-1519
`Fax: (512) 793-9575
`cennis@wsltrial.com
`USPTO Registration No. 60,587
`
`
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`Please recognize the following correspondence address (including the
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`identified electronic email addresses) for Patent Owner in this proceeding:
`
`WILLIAMS SIMONS & LANDIS PLLC
`327 Congress Avenue, Suite 490, Austin, TX 78701
`Tel.: (512) 543-1354 | Fax: (512) 793-9575
`Todd E. Landis — tlandis@wsltrial.com
`John Wittenzellner — johnw@wsltrial.com
`C. Matthew Rozier — mrozier@wsltria1.com
`Chad Ennis — cennis@wsltrial.com
`estechcounsel@wsltrial.com
`
`The individual signing below has the authority to execute this document on
`
`behalf of Patent Owner.
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`Executed on January :3, 2021
`
`By: /M§ig %
`
`Karen Boyd
`Title: General Counsel, Estech Systems, Inc.
`Patent Owner
`
`Estech Systems, Inc.
`
`
`
`IPR202 1 -003 29
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`Patent No. 8,391,298
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`CERTIFICATE OF SERVICE
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`Pursuant to 37 C.F.R. § 42.6, the undersigned certifies that on January 12,
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`2021, the foregoing document was served on counsel of record for Petitioner by
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`filing this document through the End-to-End System, as well as Via electronic mail
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`to counsel of record for Petitioner at the following addresses:
`
`Benjamin B. Weed (Benjamin.weed.PTAB@klgates.com)
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`Respectfully submitted,
`
`By: /Todd E. Landis/
`Todd E. Landis
`
`Registration No. 44,200
`Counsel for Patent Owner
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`Estech Systems, Inc.
`
`