Align Technology Inc. said the United States Patent and Trademark Office confirmed the validity of its two patents which had been challenged by ClearCorrect Operating LLC.
The USPTO did not require Align to change any of the challenged patent claims, which were confirmed based on existing claim language, the company said in a news release.
Align is asserting the confirmed patents in a patent infringement lawsuit against ClearCorrect in the Federal District Court, Southern District of Texas.
In a separate matter, the Patent Trial and Appeal Board issued a final decision on a review of another Align patent, based on a petition by ClearCorrect. The board found that several claims related to this patent were invalid. Align said it intended to appeal to the Court of Appeals for the Federal Circuit.