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Generac Power Systems, Inc. et al. v. Champion Power Equipment, Inc. - IPR2025-01438

Explore the PTAB proceeding IPR2025-01438 filed by Generac Power Systems, Inc. et al. against Champion Power Equipment, Inc. on Aug 28, 2025. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Case Details

Proceeding Number
IPR2025-01438
Filing Date
Aug 28, 2025
Petitioner
Generac Power Systems, Inc. et al.
Respondent
Champion Power Equipment, Inc.
Status
Pending
Respondent Application Number
17651245
Respondent Tech Center
3700
Respondent Patent Number
11761390

Decision Documents New

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Proceeding Documents

The table below shows documents filed in the case, listing each document name, filing date, document type, and filing party. Tracking these filings indicates the activity of the parties involved in the case, and the types of documents filed can provide insights into the legal strategies being employed.

Document NameFiling DateCategoryFiling Party

Alert me when new update on this case

Patent Owners Brief in Support of Request for Discretionary Denial of Institution

Nov 12, 2025PAPERPATENT OWNER

Docket for Champion Power Equipment, Inc. v. Firman Power Equipment Inc., Case No. 23-cv-02371 (D. Az.) (Firman Case)

Nov 12, 2025EXHIBITPATENT OWNER

Firman Case, Case Management Order, ECF No. 33

Nov 12, 2025EXHIBITPATENT OWNER

Firman Case, First Amended Complaint, ECF No. 24

Nov 12, 2025EXHIBITPATENT OWNER

Firman Case, Firman Motion to Amend Invalidity Contentions, ECF No. 115

Nov 12, 2025EXHIBITPATENT OWNER

Firman Case, Declaration and Exhibit, ECF No. 116

Nov 12, 2025EXHIBITPATENT OWNER

Firman Case, Order Granting Leave to Amend, ECF No. 124

Nov 12, 2025EXHIBITPATENT OWNER

Firman Case, Firman Nov 2024 Subpoena to third-party Generac

Nov 12, 2025EXHIBITPATENT OWNER

Generac Case, Generac First Amended Answer and Counterclaims, ECF No. 30

Nov 12, 2025EXHIBITPATENT OWNER

Defendant Generac Feb. 14, 2025 Subpoena to third-party Firman

Nov 12, 2025EXHIBITPATENT OWNER

Docket for Harbor Freight Case (C.D. Cal.)

Nov 12, 2025EXHIBITPATENT OWNER

Harbor Freight Case, Complaint for Declaratory Judgment, ECF No. 1

Nov 12, 2025EXHIBITPATENT OWNER

Harbor Freight Case, Champion Answer and Counterclaims, ECF No. 47

Nov 12, 2025EXHIBITPATENT OWNER

Harbor Freight Case, Harbor Freight Answer to Counterclaims, ECF No. 55

Nov 12, 2025EXHIBITPATENT OWNER

Harbor Freight Case, Joint R26 Report, ECF No. 38

Nov 12, 2025EXHIBITPATENT OWNER

Harbor Freight Mar. 10, 2025 Subpoena on third-party Firman

Nov 12, 2025EXHIBITPATENT OWNER

Generac Case, Complaint, ECF No. 1

Nov 12, 2025EXHIBITPATENT OWNER

June 23, 2020 Letter from Champion to MWE

Nov 12, 2025EXHIBITPATENT OWNER

July 31, 2020 MWE Response Letter

Nov 12, 2025EXHIBITPATENT OWNER

Oct. 17, 2020 MWE Responsive Letter

Nov 12, 2025EXHIBITPATENT OWNER

July 7, 2020 Letter from Champion to Generac

Nov 12, 2025EXHIBITPATENT OWNER

July 31, 2020 Generac Response Letter

Nov 12, 2025EXHIBITPATENT OWNER

March 27, 2024 Letter from Champion to Harbor Freight

Nov 12, 2025EXHIBITPATENT OWNER

June 28, 2024 Letter from Champion to Harbor Freight

Nov 12, 2025EXHIBITPATENT OWNER

Docket Navigator - Time to Milestones for D. Az. (Trial)

Nov 12, 2025EXHIBITPATENT OWNER

MWE Case, Complaint, ECF No. 1

Nov 12, 2025EXHIBITPATENT OWNER

Champion Patent Statement and Licensing Declaration Form, July 1, 2021

Nov 12, 2025EXHIBITPATENT OWNER

Firman August 30, 2024 Invalidity Contentions

Nov 12, 2025EXHIBITPATENT OWNER

August 4, 2025 Stipulation from Generac

Nov 12, 2025EXHIBITPATENT OWNER

August 4, 2025 Stipulation from Harbor Freight

Nov 12, 2025EXHIBITPATENT OWNER

US Pub No. 20020134362 (Deutsch)

Nov 12, 2025EXHIBITPATENT OWNER

US Pub No. 20140202430 (Monros)

Nov 12, 2025EXHIBITPATENT OWNER

US5809979 (Kubota Patent)

Nov 12, 2025EXHIBITPATENT OWNER

Champion September 26, 2014 Internal Email

Nov 12, 2025EXHIBITPATENT OWNER

Firman Case, Champion Motion to Amend Infringement Contentions, ECF No. 198

Nov 12, 2025EXHIBITPATENT OWNER

August 15, 2025 Stipulation from MWE

Nov 12, 2025EXHIBITPATENT OWNER

Generac Case, Exhibit 3 – webpage, ECF No. 30-03

Nov 12, 2025EXHIBITPATENT OWNER

Wayback Machine, http://pgmaonline.com/members.asp, dated July 29, 2013

Nov 12, 2025EXHIBITPATENT OWNER

Firman Case, Order, ECF No. 141

Nov 12, 2025EXHIBITPATENT OWNER

Generac April 23, 2025 Responses to Plaintiff First Set of Interrogatories

Nov 12, 2025EXHIBITPATENT OWNER

Screenshots from Honda EU20i LPG video, https://www.youtube.com/watch?v=yBpq33aJmR0

Nov 12, 2025EXHIBITPATENT OWNER

YouTube Video, HONDA EU20i LPG, https://www.youtube.com/watch?v=yBpq33aJmR0

Nov 12, 2025EXHIBITPATENT OWNER

US3384059 (Kopa)

Nov 12, 2025EXHIBITPATENT OWNER

August 29, 2025 Stipulation from MWE

Nov 12, 2025EXHIBITPATENT OWNER

August 29, 2025 Stipulation from Harbor Freight

Nov 12, 2025EXHIBITPATENT OWNER

September 2, 2025 Stipulation from Generac

Nov 12, 2025EXHIBITPATENT OWNER

US10221780 (the 780 Patent)

Nov 12, 2025EXHIBITPATENT OWNER

File History of U.S. Patent No. 11,306,667

Nov 12, 2025EXHIBITPATENT OWNER

Patent Owners Notice of Intent to Designate Scott P. Amy, a Provisionally Recognized PTAB Attorney, as Backup Counsel

Nov 10, 2025PAPERPATENT OWNER

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

Nov 10, 2025EXHIBITPATENT OWNER

Notice: Power of Attorney

Sep 18, 2025PAPERPATENT OWNER

Notice: Mandatory Notice

Sep 18, 2025PAPERPATENT OWNER

Notice: Notice filing date accorded

Sep 11, 2025PAPERBOARD

EXPUNGED

Aug 28, 2025EXHIBITPETITIONER

EXPUNGED

Aug 28, 2025EXHIBITPETITIONER

JP2005330867 (Original) (“Fujisawa”)

Aug 28, 2025EXHIBITPETITIONER

Certified Translation of JP2005330867 (“Fujisawa”)

Aug 28, 2025EXHIBITPETITIONER

Duro Max XP4400EH Operator’s Manual (“DuroMax”)

Aug 28, 2025EXHIBITPETITIONER

Declaration of David Raskin (dated May 7, 2025)

Aug 28, 2025EXHIBITPETITIONER

JPS61283734A (Original) (“Nakafushi”)

Aug 28, 2025EXHIBITPETITIONER

Certified Translation of JPS61283734A (“Nakafushi”)

Aug 28, 2025EXHIBITPETITIONER

U.S. Patent No. 5,301,644 (“Olmr”)

Aug 28, 2025EXHIBITPETITIONER

U.S. Patent No. 7,481,087 (“De Vries”)

Aug 28, 2025EXHIBITPETITIONER

U.S. Patent No. 1,931,698 (“Holzapfel”)

Aug 28, 2025EXHIBITPETITIONER

U.S. Patent No. 9,435,273 (“the ’273 Patent”)

Aug 28, 2025EXHIBITPETITIONER

Switch, MERRIAM-WEBSTER, https://www.merriam-webster.com/dictionary/switch

Aug 28, 2025EXHIBITPETITIONER

Selector Switch, MERRIAM-WEBSTER, https://www.merriam-webster.com/dictionar

Aug 28, 2025EXHIBITPETITIONER

Switch, CAMBRIDGE DICTIONARY, https://dictionary.cambridge.org/us/dictionar

Aug 28, 2025EXHIBITPETITIONER

Switch, THE FREE DICTIONARY, https://www.thefreedictionary.com/switch (last

Aug 28, 2025EXHIBITPETITIONER

RUDOLF F. GRAF, MODERN DICTIONARY OF ELECTRONICS (Charlie Buffington & Jack

Aug 28, 2025EXHIBITPETITIONER

TONY ATKINS & MARCEL ESCUDIER, OXFORD DICTIONARY OF MECHANICAL ENGINEERING

Aug 28, 2025EXHIBITPETITIONER

S.B. CHOPRA, ANMOL’S DICTIONARY OF MECHANICAL ENGINEERING (1989)

Aug 28, 2025EXHIBITPETITIONER

MCGRAW-HILL DICTIONARY OF MECHANICAL AND DESIGN ENGINEERING (Sybil P. Parke

Aug 28, 2025EXHIBITPETITIONER

G.H.F. NAYLER, DICTIONARY OF MECHANICAL ENGINEERING (rev. ed. 2006)

Aug 28, 2025EXHIBITPETITIONER

U.S. Patent No. 4,492,207 (“Hallberg”)

Aug 28, 2025EXHIBITPETITIONER

U.S. Patent No. 10,598,101 (“the ’101 Patent”)

Aug 28, 2025EXHIBITPETITIONER

File History for U.S. Patent No. 10,598,101 (“the ’101 File History”)

Aug 28, 2025EXHIBITPETITIONER

Castell Safety Int’l Ltd., Castell Interlocks: How They Work, YOUTUBE (Apr.

Aug 28, 2025EXHIBITPETITIONER

Screenshots and Video Transcript of Castell Safety Int’l Ltd., Castell Inte

Aug 28, 2025EXHIBITPETITIONER

U.S. Patent No. 9,175,601 (“Markoski”)

Aug 28, 2025EXHIBITPETITIONER

FORD MOTOR CO., 2004 SERVICE MANUAL: POWERTRAIN CONTROL/EMISSIONS DIAGNOSIS

Aug 28, 2025EXHIBITPETITIONER

U.S. Patent No. 1,827,214 (“Sturm”)

Aug 28, 2025EXHIBITPETITIONER

U.S. Patent No. 4,641,625 (“Smith”)

Aug 28, 2025EXHIBITPETITIONER

U.S. Patent No. 6,276,345 (“Nelson”)

Aug 28, 2025EXHIBITPETITIONER

U.S. Patent No. 2,645,570 (“Anderson”)

Aug 28, 2025EXHIBITPETITIONER

Champion’s Infringement Contentions for U.S. Patent No. 11,761,390 as Asser

Aug 28, 2025EXHIBITPETITIONER

U.S. Patent No. 8,040,663 (“Czarnecki”)

Aug 28, 2025EXHIBITPETITIONER

WILLIAM A. SCHUSTER, SMALL ENGINE TECHNOLOGY (2d ed. 1999)

Aug 28, 2025EXHIBITPETITIONER

Neil B. Hampson & Jennette L. Zmaeff, Carbon Monoxide Poisoning from Portab

Aug 28, 2025EXHIBITPETITIONER

H. Windawi, Controlling the Exhaust Emissions from Alternative Fuel Vehicle

Aug 28, 2025EXHIBITPETITIONER

MARTY AHRENS, NAT’L FIRE PROT. ASS’N, U.S. VEHICLE FIRE TRENDS AND PATTERNS

Aug 28, 2025EXHIBITPETITIONER

Selector Switch, THE FREE DICTIONARY https://www.thefreedictionary.com/sele

Aug 28, 2025EXHIBITPETITIONER

1045A Engineering Explained, Why Cars Backfire - Afterfire - Explained,

Aug 28, 2025EXHIBITPETITIONER

1045B Engineering Explained, Why Cars Backfire - Afterfire - Explained, YOU

Aug 28, 2025EXHIBITPETITIONER

Screenshots and Video Transcript of Engineering Explained, Why Cars Backfir

Aug 28, 2025EXHIBITPETITIONER

Shivansh Sabhadiya, What Causes Backfire in an Engine?, ENGINEERING CHOICE,

Aug 28, 2025EXHIBITPETITIONER

U.S. Patent No. 4,489,699 (“Poehlman”)

Aug 28, 2025EXHIBITPETITIONER

U.S. Patent Application Publication No. 2007/0137591 (“Sugimoto”)

Aug 28, 2025EXHIBITPETITIONER

Declaration on Mina Ching (dated Apr. 22, 2025)

Aug 28, 2025EXHIBITPETITIONER

Answer and Counterclaims, Harbor Freight Tools USA Inc. v. Champion Power E

Aug 28, 2025EXHIBITPETITIONER

Petition: as filed

Aug 28, 2025PAPERPETITIONER

Notice: Power of Attorney Generac

Aug 28, 2025PAPERPETITIONER

Notice: Power of Attorney Harbor Freight

Aug 28, 2025PAPERPETITIONER

Notice: Power of Attorney MWE

Aug 28, 2025PAPERPETITIONER

U.S. Patent No. 11,761,390 - The '390 Patent

Aug 28, 2025EXHIBITPETITIONER

File History for U.S. Patent No. 11,761,390

Aug 28, 2025EXHIBITPETITIONER

Winkel Declaration

Aug 28, 2025EXHIBITPETITIONER