Home › PTAB Cases › IPR2025-00951

Generac Power Systems, Inc. et al. vs. Champion Power Equipment, Inc.

Explore the PTAB proceeding IPR2025-00951 filed by Generac Power Systems, Inc. et al. on 2025-05-16. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2025-00951

Filing Date

2025-05-16

Accorded Filing Date

2025-05-16

Institution Decision Date

2026-02-03

Last Modified Date

2026-03-06

Proceeding Type

IPR

Termination Date

2026-02-03

Trial Status

Institution Denied

Parties & Counsel

Petitioner

Generac Power Systems, Inc. et al.

Represented By

Leach, Thomaset al

Patent Owner / Respondent

Champion Power Equipment, Inc.

Represented By

STALEY, JOSEPHet al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 3700 - Mechanical Engineering & Manufacturing

Patent Information

1 Patent Involved

Respondent Application Number 15015205

Respondent Patent Number 10598101

External Links

Espacenet

Google Patents

Respondent Inventor Mark J. Sarder et al

Respondent Tech Center TC 3700 - Mechanical Engineering & Manufacturing

Address and Attorney/Agent Information

2 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name ZIOLKOWSKI PATENT SOLUTIONS GROUP, SC (ZPS)

Customer Number 26629

Address 136 S WISCONSIN ST, PORT WASHINGTON, WI, 53074, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
38368	Timothy Ziolkowski	262-268-8100
71459	Jacob Fritz	262-268-8100

Proceeding Documents

188

Notice: refund approved NOTICE

2026-03-05 FILING PARTY: BOARD

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Refund Request OTHER

2026-02-23 FILING PARTY: PETITIONER

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Director Review Decision Reversing Institution Decision DECISION

2026-02-03 FILING PARTY: BOARD

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Notice of Parties Stipulated Change of Due Dates NOTICE

2026-01-30 FILING PARTY: PATENT OWNER

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Order: Settlement as to Harbor Freight Tools USA Inc. and MWE Investments, LLC 35 U.S.C. sec. 317; 37 C.F.R. secs. 42.72, 42.74 ORDER

2026-01-20 FILING PARTY: BOARD

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UNOPPOSED MOTION TO WITHDRAW MWE INVESTMENTS, LLC AS A NAMED PETITIONER OTHER

2026-01-12 FILING PARTY: PETITIONER

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JOINT REQUEST TO TREAT SETTLEMENT AGREEMENT AS BUSINESS CONFIDENTIAL INFORMATION OTHER

2026-01-12 FILING PARTY: PETITIONER

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Joint Request that Settlement Agreement Filed Separately as Exhibit 1300 be Kept Separate from the Files OTHER

2026-01-12 FILING PARTY: PETITIONER

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Petitioner Harbor Freight’s Motion to Withdraw MOTION

2026-01-12 FILING PARTY: PETITIONER

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3004

E-mail authorizing motion to terminate Exhibit

2026-01-05 FILING PARTY: BOARD

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Patent Owners Briefing on Impact of Revvo and Tesla Decisions OTHER

2025-12-22 FILING PARTY: PATENT OWNER

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PETITIONERS’ BRIEF REGARDING REVVO AND TESLA IN VIEW OF PETITONERS’ CLAIM CONSTRUCTION POSITIONS OTHER

2025-12-22 FILING PARTY: PETITIONER

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Order Authorizing Additional Briefing ORDER

2025-12-15 FILING PARTY: BOARD

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Order Granting Director Review of Institution Decision Sua Sponte REQUEST

2025-12-09 FILING PARTY: BOARD

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Patent Owners Objections to Evidence OTHER

2025-12-05 FILING PARTY: PATENT OWNER

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2121

November 20, 2025 email from Trials@USPTO.GOV in IPR2025-01228 Exhibit

2025-12-04 FILING PARTY: PATENT OWNER

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2110

Harbor Freight Case, HFT's Opening Claim Construction Brief Exhibit

2025-12-04 FILING PARTY: PATENT OWNER

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2113

Generac Case, Generac's Supplemental Preliminary Invalidity Contentions, dated 2025-09-25 (redacted) Exhibit

2025-12-04 FILING PARTY: PATENT OWNER

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Patent Owners Request for Rehearing Pursuant to 37 C.F.R. § 42.71(d) REHEARING

2025-12-04 FILING PARTY: PATENT OWNER

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2120

November 20, 2025 email from Trials@USPTO.GOV in IPR2025-01099 Exhibit

2025-12-04 FILING PARTY: PATENT OWNER

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DECISION Granting Institution of Inter Partes Review 35 U.S.C. § 314 DECISION

2025-11-20 FILING PARTY: BOARD

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3003

EX 3003 Exhibit

2025-11-20 FILING PARTY: BOARD

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SCHEDULING ORDER ORDER

2025-11-20 FILING PARTY: BOARD

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Patent Owners Updated Mandatory Notices NOTICE

2025-10-21 FILING PARTY: PATENT OWNER

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Patent Owner's Sur-Reply in Support of Its Preliminary Response OTHER

2025-10-17 FILING PARTY: PATENT OWNER

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1080

EX1080 Champion Generator Model 100153 Operators Manual Exhibit

2025-10-03 FILING PARTY: PETITIONER

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1077

EX1077 Champion Opening Claim Construction Brief Exhibit

2025-10-03 FILING PARTY: PETITIONER

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Petitioner's Preliminary Reply to the Patent Owner Preliminary Response OTHER

2025-10-03 FILING PARTY: PETITIONER

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1078

EX1078 File History for 780 Patent Exhibit

2025-10-03 FILING PARTY: PETITIONER

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Director Discretionary Decision: Refer RESPONSE

2025-10-03 FILING PARTY: BOARD

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1079

EX1079 Excerpts from Champion Answers to Generac Second Set of Interrogatories Exhibit

2025-10-03 FILING PARTY: PETITIONER

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2087

Declaration of Scott P. Amy in Support of Patent Owner's Notice of Intent to Designate a Provisionally Recognized PTAB Attorney as Backup Counsel Exhibit

2025-10-01 FILING PARTY: PATENT OWNER

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Patent Owner's Notice of Intent to Designate Scott P. Amy, a Provisionally Recognized PTAB Attorney, as Backup Counsel NOTICE

2025-10-01 FILING PARTY: PATENT OWNER

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3002

Ex 3002 Authorization to file response to POPR Exhibit

2025-09-25 FILING PARTY: BOARD

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Patent Owners Updated Power of Attorney NOTICE

2025-09-18 FILING PARTY: PATENT OWNER

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Patent Owners Updated Mandatory Notices NOTICE

2025-09-18 FILING PARTY: PATENT OWNER

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Order Conditionally Granting Patent Owner’s Motion for Withdraw and Substitution of Counsel ORDER

2025-09-18 FILING PARTY: BOARD

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1073

U.S. Patent No. 10,563,596 (“Wischtadt”) Exhibit

2025-09-16 FILING PARTY: PETITIONER

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1067

Docket Navigator Time to Milestone Statistics for Central District of California Exhibit

2025-09-16 FILING PARTY: PETITIONER

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1066

Docket Navigator Time to Milestone Statistics for Eastern District of Wisconsin Exhibit

2025-09-16 FILING PARTY: PETITIONER

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1056

Docket Navigator Statistics Regarding Judge Adelman's Grant Rate for Motions to Stay Exhibit

2025-09-16 FILING PARTY: PETITIONER

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1064

Docket Navigator Time to Trial Statistics for District of Nevada Exhibit

2025-09-16 FILING PARTY: PETITIONER

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1076

PatDocs Champion Patent Portfolio Overview Exhibit

2025-09-16 FILING PARTY: PETITIONER

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1074

U.S. Patent No. 10,862,414 (“Sarder”) Exhibit

2025-09-16 FILING PARTY: PETITIONER

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2095

Harbor Freight Case, Preliminary Proposed Claim Constructions Exhibit

2025-09-16 FILING PARTY: PATENT OWNER

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1060

Order, Parsons Xtreme Golf LLC v. Taylor Made Golf Co., No. 17-cv-3125, Dkt. 187 (D. Ariz., order dated Nov. 29, 2018) Exhibit

2025-09-16 FILING PARTY: PETITIONER

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1061

Email from Taylor R. Stemler to Jennifer Hoekel et al. (Aug. 13, 2025) Exhibit

2025-09-16 FILING PARTY: PETITIONER

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1075

Plaintiff's Answer to Defendant Generac Power Systems, Inc.'s Amended Counterclaim Exhibit

2025-09-16 FILING PARTY: PETITIONER

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1057

Docket Navigator Statistics Regarding Grant Rate for Motions to Stay in Eastern District of Wisconsin Exhibit

2025-09-16 FILING PARTY: PETITIONER

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1069

Champion Power Equipment, Inc.'s Preliminary Infringement Contentions, Harbor Freight Tools USA, Inc. v. Champion Power Equipment, Inc., No. 24-cv-8722 (C.D. Cal., served Apr. 24, 2025) Exhibit

2025-09-16 FILING PARTY: PETITIONER

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1062

Docket Navigator Statistics Regarding Grant Rate for Uncontested Motions to Stay in Eastern District of Wisconsin Exhibit

2025-09-16 FILING PARTY: PETITIONER

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1072

U.S. Patent No. 10,319,207 (“Janscha”) Exhibit

2025-09-16 FILING PARTY: PETITIONER

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1055

Order on Defendant/Counter-Claimant's Motion for Partial Stay, FaceTec, Inc. v. iProov, Ltd., No. 21-cv-2252, Dkt. 188 (D. Nev., order dated June 18, 2025) Exhibit

2025-09-16 FILING PARTY: PETITIONER

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1068

First Amended Complaint, Champion Power Equipment, Inc. v. Firman Power Equipment, Inc., No. 23-cv-2371, Dkt. 24 (D. Ariz. Mar. 29, 2024) Exhibit

2025-09-16 FILING PARTY: PETITIONER

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1070

Memorandum in Support of Plaintiff's Motion to Sever Defendant's Counterclaims for Infringement or in the Alternative for Leave to File an Amended Answer and Counter-Counterclaim, Champion Power Equipment, Inc. v. Generac Power Systems, Inc., No. 24-cv-1281, Dkt. 38 (E.D. Wis. July 3, 2025) Exhibit

2025-09-16 FILING PARTY: PETITIONER

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1058

Docket Navigator Statistics Regarding Motions to Stay in District of Nevada Exhibit

2025-09-16 FILING PARTY: PETITIONER

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1063

Docket Navigator Statistics Regarding Grant Rate for Uncontested Motions to Stay in District of Nevada Exhibit

2025-09-16 FILING PARTY: PETITIONER

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Patent Owners Preliminary Response POPR

2025-09-16 FILING PARTY: PATENT OWNER

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PETITIONER’S OPPOSITION TO PATENT OWNER’S REQUEST FOR DISCRETIONARY DENIAL OF INSTITUTION RESPONSE

2025-09-16 FILING PARTY: PETITIONER

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1071

Answer and Counterclaim, Champion Power Equipment, Inc. v. Firman Power Equipment, Inc., No. 23-cv-2371, Dkt. 13 (D. Ariz., answer filed Jan. 31, 2024) Exhibit

2025-09-16 FILING PARTY: PETITIONER

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1059

Declaration of Eric Huang (dated Sept. 12, 2025) Exhibit

2025-09-16 FILING PARTY: PETITIONER

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1065

Docket Navigator Time to Milestone Statistics for Judge Adelman Exhibit

2025-09-16 FILING PARTY: PETITIONER

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3001

Ex. 3001 Exhibit

2025-09-02 FILING PARTY: BOARD

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Patent Owner's Unopposed Motion to Withdraw and Substitute Counsel MOTION

2025-08-28 FILING PARTY: PATENT OWNER

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Patent Owner's Amended Mandatory Notices NOTICE

2025-08-22 FILING PARTY: PATENT OWNER

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Patent Owner's Amended Power of Attorney NOTICE

2025-08-22 FILING PARTY: PATENT OWNER

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2060