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`UNITED STATES PATENT AND TRADEMARK OFFICE
`____________
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`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`____________
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`ENVIROLOGIX INC.,
`Petitioner,
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`v.
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`IONIAN TECHNOLOGIES, INC.,
`Patent Owner.
`____________
`
`Case IPR2018-00405
`Patent 9,562,263
`____________
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`PATENT OWNER’S SUBSTITUTE POWER OF ATTORNEY
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`[PR2018—00405
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`Pursuant to 37 CPR. § 4210(1)), the assignee of US. Patent No. 9,562,263,
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`Ionian Technologies, LLC, appoints the following practitioners as its
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`representatives to act on its behalf in the captioned Inter Pat-res Review, and to
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`transact all business in the United States Patent and 'l‘rademark Office in
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`connection therewith:
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` Lead Counsel
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`Aaron F. Barkoff, PhD.
`Christopher P. Singer, PhD.
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`Registration No. 52,591
`Registration No. 48,701
`MCANDREWS,I‘IE1.I) & MALLOY, LTD.
`MCANDREWS, HELD & MALLOY, LTD.
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`500 W. Madison St., 341h Floor
`500 W. Madison St., 34‘h Floor
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`Chicago, IL 60661
`Chicago, IL 60661
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`Tel: (312) 775-8000
`Tel: (312) 775-8000
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`Fax: (312) 775-8100
`Fax: (312) 775—8100
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`Email: abarkofr:@mcandrews-ip.com
`Email: csinger@mcandrews-ip.com
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`
`
`
`Back-u Counsel
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`
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`hnologies, LLC. On behalfofl
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` Date: April L, 2018
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`Signature:
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`Name:
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`Paul D. Yasger
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`Title:
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`Assistant Secretary
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`
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`IPR2018-00405
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`CERTIFICATE OF SERVICE
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`I certify that a true and correct copy of the foregoing PATENT OWNER’S
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`SUBSTITUTE POWER OF ATTORNEY was served on May 1, 2018, via email
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`to counsel for Petitioner EnviroLogix, Inc.:
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`
`
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`Jonathan D. Ball, Ph.D.
`Melissa Hunter-Ensor, Ph.D.
`GREENBERG TRAURIG, LLP
`ballj@gtlaw.com
`hunterensorm@gtlaw.com
`bosipmail@gtlaw.com
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`/s/ Aaron F. Barkoff, Ph.D.
`Reg. No. 52,591
`MCANDREWS, HELD & MALLOY, LTD.
`500 W. Madison St., 34th Floor
`Chicago, IL 60661
`Tel: (312) 775-8000
`abarkoff@mcandrews-ip.com
`
`
`