ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,504,053, issued on Dec. 23, was assigned to Fox Factory Inc. (Duluth, Ga.).

"Position sensitive suspension damping with an active valve" was invented by Christopher Paul Cox (Capitola, Calif.), John Marking (El Cajon, Calif.) and Everet Owen Ericksen (Woodland, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and apparatus for position sensitive dampening with an active valve. In one aspect a fluid damper is provided comprising a damper chamber divided by a piston into a primary compression and a primary rebound chamber; a secondary compression chamber in fluid communication with the damper chamber; and an active valve controlling fluid flo...