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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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`TENNANT COMPANY,
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`Petitioner,
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`OXYGENATOR WATER TECHNOLOGIES, INC.,
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`Patent Owner.
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`Case IPR2021-00625
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`Patent RE45415
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`JOINT STIPULATION TO MODIFY THE SCHEDULE
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`Pursuant to the Scheduling Order (Paper 10 at 7-8), Patent Owner
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`Oxygenator Water Technologies, Inc. and Petitioner Tennant Company, through
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`their attorneys of record, hereby stipulate and agree to modify the due date for
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`Patent Owner’s Response to the Petition (DUE DATE 1) from November 12,
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`2021, to November 19, 2021. This change is limited to DUE DATE 1, and all
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`remaining deadlines set forth in the Scheduling Order are unaffected.
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`Dated: October 29, 2021
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`Respectfully submitted,
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`/J. Derek Vandenburgh/
`J. Derek Vandenburgh
`Registration No. 32,179
`Carlson, Caspers, Vandenburgh &
`Lindquist, P.A.
`225 South Sixth Street, Suite 4200
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`Minneapolis, MN 55402
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`Email: DVandenburgh@carlsoncaspers.com
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`Lead Counsel for Patent Owner
`Oxygenator Water Technologies, Inc
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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 October 29, 2021, a true and correct copy of the
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`foregoing was served via electronic mail upon the 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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`Thomas M. Patton (Reg. No. 76,193)
`Fredrikson & Byron, P.A.
`505 E. Grand Ave., Suite 200
`Des Moines, IA 50309
`Phone: (515) 242-8908
`Fax: (515) 242-8950
`Email: tpatton@fredlaw.com
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`/s/ J. Derek Vandenburgh
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`J. Derek Vandenburgh (Lead Counsel)
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