March 9, 2026·24-2122·Panel Decision·By Maria Santos
The United States Court of Appeals for the Federal Circuit affirmed a district court judgment finding patent claims invalid. The court held that the asserted claims were indefinite under Section thirty-five of the United States Code, Section one hundred twelve.
This appeal arose from a patent dispute in the United States District Court for the Central District of California. The case involved Plaintiff-Appellant DSS, Inc. and Defendants-Appellees Nichia Corporation and Nichia America Corporation.
The court’s reasoning
The court affirmed the judgment on the ground that the asserted claims, specifically claims one through eight and eleven of United States Patent Number six million eight hundred seventy-nine thousand forty, are invalid as indefinite under Section thirty-five of the United States Code, Section one hundred twelve.
What it means going forward
The affirmation reinforces the standard for patent indefiniteness under Section thirty-five of the United States Code, Section one hundred twelve, ensuring that patent claims must provide clear notice of the scope of the invention.
