`__________________
`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`__________________________________________________________________
`
`RINGCENTRAL, INC.,
`Petitioner
`v.
`ESTECH SYSTEMS, INC.,
`Patent Owner
`
`Case IPR2021-00574
`
`US Patent No. 8,391,298
`__________________________________________________________________
`
`PETITIONER’S REQUEST FOR ORAL ARGUMENT
`__________________________________________________________________
`
`
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`Pursuant to 37 C.F.R. § 42.64, Petitioner RingCentral, Inc. respectfully
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`requests that oral argument be held on the currently scheduled July 12, 2022 date
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`(see Paper 14). Petitioner requests 1 hour of argument time. Consistent with the
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`notice set forth at https://www.uspto.gov/about-us/news-updates/uspto-update-
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`person-meetings, Petitioner understands, and otherwise requests,
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`that oral
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`argument is to be conducted remotely via video conference as opposed to in
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`person. Petitioner believes that the following issues should be argued:
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`1. Whether claims 1-5, 7-12, and 17-19 are unpatentable as obvious over
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`Chang and Byrne;
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`2. Whether claim 6 is unpatentable as obvious over Chang, Byrne, and
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`Imielinski;
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`3.
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`Any issue raised by any party in a motion to strike (if any), motion to
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`exclude (if any), objections to demonstrative exhibits (if any), or any other motion
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`or paper filed by any party before oral argument; and
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`
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`4.
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`Any further response to Patent Owner’s presentation on all matters.
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`-1-
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`
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`Dated: May 25, 2022
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`Respectfully submitted,
`
`ORRICK, HERRINGTON & SUTCLIFFE LLP
`
` / K. Patrick Herman /
`K. Patrick Herman, Reg. No. 75,018
`Orrick, Herrington & Sutcliffe LLP
`51 West 52nd Street
`New York, NY 10019
`T: 212-506-3596; F: 212-506-5151
`Email: P52PTABDocket@orrick.com
`
`Attorney for Petitioner RingCentral, Inc.
`
`-2-
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`
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`CERTIFICATE OF SERVICE
`
`The undersigned hereby confirms that the foregoing paper was caused to be
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`served on May 25, 2022 via email upon the following counsel of record for Patent
`
`Owner:
`
`Todd E. Landis
`WILLIAMS SIMONS & LANDIS PLLC
`2633 McKinney Avenue, Suite 130
`Dallas, TX 75204
`
`John Wittenzellner
`WILLIAMS SIMONS & LANDIS PLLC
`1735 Market Street, Suite A #453
`Philadelphia, PA 19103
`
`tlandis@wsltrial.com
`usccounsel@wsltrial.com
`
`johnw@wsltrial.com
`
`/K. Patrick Herman/
`K. Patrick Herman, Reg. No. 75,018
`Orrick, Herrington & Sutcliffe LLP
`51 West 52nd Street
`New York, NY 10019
`T: 212-506-3596; F: 212-506-5151
`Email: P52PTABDocket@orrick.com
`
`-3-
`
`