Short Summary
The USPTO Director has initiated a sua sponte review of the Board’s decision to institute an IPR against Champion Power Equipment’s generator patent, addressing claim‑construction disputes raised by Harbor Freight and its co‑petitioners.
Detailed Summary
In a December 10, 2025 order, the USPTO Director granted a sua sponte Director Review of the Board’s decision to institute inter partes review (IPR) of Champion Power Equipment’s U.S. Patent No. 10,393,034 covering portable generator technology. The review was prompted by claim‑construction issues raised by the petitioners—Harbor Freight Tools USA, Inc., Generac Powers Systems, Inc., and MWE Investments, LLC. The Director’s order initiates the review and directs that a substantive opinion on the claim constructions will be issued in due course, providing the parties an opportunity to clarify claim scope before the merits of the IPR are adjudicated.
Practitioner Note
This case demonstrates the evidentiary and procedural standards applied in patent matters before local courts. Understanding the court's reasoning in Harbor Freight Tools USA, Inc. et al. vs Champion Power Equipment, Inc. is valuable context for structuring arguments or assessing risk in similar proceedings.
Related Cases
CISCO SYSTEMS, INC.vsUMBRA TECHNOLOGIES LTD.
Umbra has filed a Director Review request challenging the PTAB’s claim construction for an “end-to-end tunnel” and seeking to vacate the institution of review for Cisco’s IPR. The Board had instituted the IPR based on an obviousness finding over Hankins and Munger references.
Shenzhen Tuozhu Technology Co., Ltd. et al.vsStratasys, Inc. et al.
The PTAB denied the petitioner's request for Director Review of the institution decisions in four IPRs, including the case involving Stratasys’s 3D‑printing patent (US 10,556,381). The institution decisions therefore remain in force.
Taiwan Semiconductor Manufacturing Company Ltd.vsMarlin Semiconductor Limited et al.
TSMC has filed an IPR petition against Marlin Semiconductor’s U.S. Pat. 7,288,822, asserting that all fourteen claims are unpatentable. The petition relies on five prior‑art references to argue obviousness and anticipation under §§ 102 and 103.
Samsung Electronics Co., Ltd. et al.vsHEADWATER RESEARCH LLC
Samsung has filed an IPR petition seeking to invalidate Headwater Research's U.S. Patent 11,096,055 covering automated device provisioning and activation. The petition alleges obviousness over multiple prior‑art references and argues against discretionary denial. The case is pending before the PTAB.
Henri Daussi, LLCvsECNA, LLC et al.
Henri Daussi, LLC and ECNA, LLC settled their dispute over U.S. Patent 9,398,791 B1 and jointly moved to terminate the inter partes review before the Board instituted the trial. The Board granted the motion, dismissing the petition.
Dealing with a patent challenge?
Whether it's a Section 3(d) rejection, a post-grant opposition, or a FRAND dispute, Arctic's patent litigation team has handled it. Get a strategy call.
Disclaimer: This page contains an automated summary based on publicly available judicial records. The content is generated for informational purposes only and does not constitute legal advice. Always verify details against the original source judgment before relying on this information for any legal purpose. If you believe any information is inaccurate, please contact us.