J&M Manufacturing Co., Inc. v. Kinze Manufacturing, Inc. — Fed. Cir. (Oct 5, 2026)

No. 25-1654 Argued October 5, 2026 Published October 8, 2026

The Federal Circuit hears J and M Manufacturing versus Kinze Manufacturing, a dispute over a grain cart used to unload harvested grain into a truck trailer. J and M's patent describes a folding auger and an adjustable spout designed to direct grain across the trailer, including its corners. J and M sued Kinze for patent infringement. The district court ruled for Kinze after finding the patent claims indefinite, focusing on the phrase askewed angle. J and M appeals that ruling. A patent claim defines the scope of protection for an invention. A Markman hearing is a proceeding in which the judge determines what the patent's claim language means.

J&M Manufacturing Co., Inc. v. Kinze Manufacturing, Inc. (No. 25-1654) — U.S. Court of Appeals for the Federal Circuit, argued October 5, 2026.

Sources

Argument audio — Federal Circuit court original:https://www.cafc.uscourts.gov/oral-arguments/25-1654_10052026.mp3

Argument date and recording — Federal Circuit listing:https://www.cafc.uscourts.gov/home/oral-argument/listen-to-oral-arguments/

Grain-cart patent — US9113598B2:https://patents.google.com/patent/US9113598B2/en

District-court termination excerpt and case record — PatSnap public reproduction:https://www.patsnap.com/resources/blog/litigation/jm-manufacturing-v-kinze-manufacturing-grain-cart-patent-invalidity-patsnap/

Appeal and underlying district-case identity — Federal Circuit order:https://www.cafc.uscourts.gov/opinions-orders/25-1654.ORDER.6-3-2025_2524277.pdf

Patent claims and judicial claim construction — Markman v. Westview:https://www.govinfo.gov/content/pkg/USREPORTS-517/pdf/USREPORTS-517-370.pdf

Claim-construction hearing and analysis — N.D. New Jersey judicial opinion:https://www.govinfo.gov/content/pkg/USCOURTS-njd-1_13-cv-05723/pdf/USCOURTS-njd-1_13-cv-05723-1.pdf

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