`Patent: RE45415
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`UNITED STATES PATENT AND TRADEMARK OFFICE
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`____________
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`BEFORE THE PATENT TRIAL AND APPEAL BOARD
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`____________
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`TENNANT COMPANY,
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`Petitioner,
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`v.
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`OXYGENATOR WATER TECHNOLOGIES, INC.,
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`Patent Owner.
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`____________
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`Case IPR2021-00602
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`Patent RE45415
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`____________
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`PATENT OWNER OXYGENATOR WATER TECHNOLOGIES, INC.’S POWER OF
`ATTORNEY PURSUANT TO 37 C.F.R. § 42.10(b)
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`
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`[PR202 1 -00602
`Patent: RE45415
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`Pursuant to 37 C.F.R. § 42.10%), Patent Owner, Oxygenator Water Technologies, Inc-
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`(“CWT”), hereby appoints the following attorneys to represem Fatent Gene: in the above-
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`captioned inter pal—res review proceeding and to tnmsact all business in the Patent Trial and
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`Appeal Board ofthe United States Patent and 'i 'rademark Ofiiee connected therewith:
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`J. Derek Vandenburgh, Reg. No. 32,179
`Carlson, Caepers, Vandenburgh, & Iindquist, RA.
`Capella Tower, Suite 4200
`225 South Sixth Street
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`Minneapolis, MN 55402
`Email: dvandenburgh@carlsoucaspcrs.com
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`Aaron W. Perle—moo, Reg, No- 58,667
`Carlson, Gas-pets, Vandenburgh, & Lindquist, P.A.
`Capoila Tower, Suite 4200
`225 South Sixth Street
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`Minneapolis, MN 55402
`Email: OWT@caIlsoncaspers.com
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`Nathan 1). Louwagie, Reg. No. 70,075
`Carlson. Casperss Vandenbnrgh; fir. Hedonist, P. A.
`Capella 'l'ower, Suite 4200
`225 South Sixth Street
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`Minneapolis, MN 55402
`Email: ultfiiWfigi&@u&iifiniieaspersenm
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`Executed by the undersigned with the authority of Patent Owner Oxygenator Water
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`'l‘eehnologies, Inc.
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`For:
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`Oxygenator \Eflitggn'lfeehnologies, inc-
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`Signature: ; fife/{Z58 X73912;
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`_,
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`By: Mark Rolfes
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`Tittle: Chief Executive Officer
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`Date: _M§I_‘CL30.. 2021
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`
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`IPR2021-00602
`Patent: RE45415
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`
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`CERTIFICATION OF SERVICE
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`Pursuant to 37 C.F.R. § 42.6(e) and the agreement of the parties, the
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`undersigned certifies that on March 30, 2021, a true and correct copy of the
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`foregoing Patent Owner Oxygenator Water Technologies, Inc.’s Power of Attorney
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`Pursuant to 37 C.F.R. § 42.10(b) was served via electronic mail upon the
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`following:
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`R. Scott Johnson (Reg. No. 45,792)
`Fredrikson & Byron, P.A.
`505 E. Grand Ave., Suite 200
`Des Moines, IA 50309
`Phone: (515) 242-8930
`Fax: (515) 242-8950
`Email: RSJohnson@fredlaw.com
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`Adam R. Steinert
`Fredrikson & Byron, P.A.
`200 South 6th Street, Suite 4000
`Minneapolis, MN 55402
`Tel: (612) 492-7000
`Fax: (612) 492-7797
`Email: asteinert@fredlaw.com
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`/s/ J. Derek Vandenburgh
`J. Derek Vandenburgh (Lead Counsel)
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`2
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