Generac Power Systems, Inc. et al. vs. Champion Power Equipment, Inc.
Explore the PTAB proceeding IPR2025-01228 filed by Generac Power Systems, Inc. et al. on 2025-07-11. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.
Proceeding Overview
Proceeding Number
IPR2025-01228
Filing Date
2025-07-11
Accorded Filing Date
2025-07-11
Institution Decision Date
2025-12-11
Last Modified Date
2026-03-05
Proceeding Type
IPR
Termination Date
2025-12-11
Trial Status
Discretionary Denial
Parties & Counsel
Petitioner
Generac Power Systems, Inc. et al.
Represented By
Leach, Thomaset alPatent Owner / Respondent
Champion Power Equipment, Inc.
Represented By
STALEY, JOSEPHet alTribunal & Venue
Tribunal
Patent Trial and Appeal Board (USPTO)
Technology Center
TC 3700 - Mechanical Engineering & Manufacturing
Patent Information
Respondent Application Number
18330807
Respondent Patent Number
11905896
External Links
Respondent Inventor
Mark J. Sarder et al
Respondent Tech Center
TC 3700 - Mechanical Engineering & Manufacturing
Address and Attorney/Agent Information
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
156
30
Notice: refund approved NOTICE
2026-03-05
FILING PARTY: BOARD
29
Refund Request OTHER
2026-02-23
FILING PARTY: PETITIONER
26
JOINT REQUEST TO TREAT SETTLEMENT AGREEMENT AS BUSINESS CONFIDENTIAL INFORMATION OTHER
2026-01-12
FILING PARTY: PETITIONER
25
UNOPPOSED MOTION TO WITHDRAW MWE INVESTMENTS, LLC AS A NAMED PETITIONER OTHER
2026-01-12
FILING PARTY: PETITIONER
27
Petitioner Harbor Freight’s Motion to Withdraw MOTION
2026-01-12
FILING PARTY: PETITIONER