ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,776, issued on May 20, was assigned to Ford Global Technologies LLC (Dearborn, Mich.).

"Systems and methods for a fuel refill pressure relief valve" was invented by Aed Dudar (Canton, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and systems are provided for diagnosing a fuel refill pressure relief valve that is located along a passage that extends from an exhaust system to a fuel tank. The method may include commanding the fuel refill pressure relief valve open while monitoring flow through particulate filter via a differential pressure sensor."

The patent was filed on June 7, 2023, under Application No. 18/330,924.

*For further in...