⚖ Oral Arguments, with Context

The Federal Circuit reviews LPP Combustion's challenge to rulings in its patent dispute with General Electric. The patents address how fuel burns and how to prevent premature ignition. One patent uses an inert diluent, a lower-oxygen gas intended to keep fuel from igniting before the combustion chamber. The dispute is whether inert, or non-reactive, excludes every gas containing hydrocarbons, common fuel components. The trial court read the term to exclude those gases. LPP will argue that reactivity depends on the conditions, not just a gas's hydrocarbon content. Patent claims are the written statements that define what a patent protects; claim construction is interpreting them. The other issue involves two patents that sense fuel or combustion characteristics and trigger an additive to adjust combustion when a reading falls outside an acceptable range. The trial court held the challenged claims ineligible under Section one oh one: it viewed them as an abstract idea of sensing, comparing and adjusting without an additional inventive concept. Eligibility asks whether the claims satisfy the threshold for patent protection, not simply whether General Electric infringes. LPP will argue that the ordered combination is a specific technical improvement, even if individual components are conventional. General Electric will defend the court's reading of the gas limitation and its view that the other claims describe a generic feedback system.

General Electric Company v. LPP Combustion, LLC (No. 25-1821) — U.S. Court of Appeals for the Federal Circuit, argued November 2, 2026.