Court Vacated Denial of Patent Infringement Sanctions
The ruling forces a lower court to reconsider fees in a case where the plaintiff sued despite known invalidity claims.
Updated on Sept. 30, 2026 in Remote Work
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The U.S. Court of Appeals for the Federal Circuit vacated a district court ruling that had initially denied sanctions and attorney's fees to Pen-Tech. The case centers on an infringement suit involving U.S. Patent No. 8,545,317 that the lower court later found invalid.
Why it matters
The decision clarifies the standard for imposing sanctions on plaintiffs who pursue infringement litigation despite clear evidence of patent invalidity. Operators involved in patent disputes should monitor this case as a signal regarding the potential recovery of legal costs.
The ruling follows the invalidation of U.S. Patent No. 8,545,317 under Section 101, which governs patent eligibility standards. The appellate court found the district court's original denial of fees lacked sufficient reasoning, leaving the final fee amount unknown.
The players
U.S. Court of Appeals for the Federal Circuit
An appellate court that maintains exclusive national jurisdiction over patent law cases.
U.S. District Court for the Northern District of Georgia
A federal trial court that previously presided over the original infringement litigation.
Pen-Tech
The defendant in the infringement suit that sought sanctions for legal costs.
Epic Tech
The plaintiff that asserted claims for U.S. Patent No. 8,545,317.
The details
Epic Tech initiated a 2020 lawsuit against Pen-Tech claiming infringement of its '317 patent. The U.S. District Court for the Northern District of Georgia previously invalidated the patent under Section 101 but rejected Pen-Tech's request for Rule 11 sanctions. The appellate court found the district court did not adequately account for evidence that Epic Tech had received notice of claim invalidity prior to filing suit.
Timeline
October 2013: U.S. Patent No. 8,545,317 issued.
December 2013: USPTO rejected related patent applications.
2020: Epic Tech sued Pen-Tech for patent infringement.
September 30, 2026: CAFC issued decision.
Market Landscape
This development follows an established industry trend of increased judicial scrutiny toward patent litigation quality. It mirrors broader efforts to curb abuse of intellectual property claims, particularly when patents face Section 101 eligibility hurdles.
Operators currently embroiled in patent disputes should review their records regarding notice of invalidity provided to plaintiffs. If faced with a suit for a patent already rejected in related applications, consult counsel on the feasibility of seeking fee-shifting sanctions.
The takeaway
The appellate court has underscored the necessity for lower courts to provide rigorous justification when dismissing fee-shifting requests in patent litigation. Ensure your legal counsel tracks all instances of invalidity notice to support potential recovery claims in future patent disputes.
Further reading
For broader context on how regulatory shifts impact digital business operations, visit the Remote Work section.
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Should courts penalize companies for filing lawsuits they have reason to believe are invalid?
