⚖ Oral Arguments, with Context

The Federal Circuit hears a patent dispute between Guntert and Zimmerman and GOMACO over concrete paving machines. Guntert and Zimmerman sued GOMACO, alleging that its machines used the patented arrangement of support legs. Those legs connect the machine’s central frame to the tracks that carry it over the ground. The patent distinguishes a forward connection through a support called a bolster from a connection along the side. The patent holder says the same connection on GOMACO’s machine can satisfy both descriptions. The district court rejected that theory as inconsistent with the patent’s requirements, keeping the infringement claim from proceeding. Guntert and Zimmerman will challenge that reading and the decision to stop the case at the pleading stage; GOMACO will defend the dismissal. Listen for whether one connection can do two claimed jobs, and whether the court could resolve that dispute without further interpretation of the patent.

Guntert & Zimmerman Const. Div., Inc. v. GOMACO Corporation (No. 25-1509) — U.S. Court of Appeals for the Federal Circuit, argued November 9, 2026.