ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,453,935, issued on Oct. 28, was assigned to Transportation IP Holdings LLC (Norwalk, Conn.).

"Filter system and method" was invented by Brett Heher (Pittsburgh), Douglas Lee Locke (Cranberry Township, Pa.), Jennifer Coyne (Franklin Park, Pa.) and John E. Barnes (Norwalk, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A filter system includes a body having an inlet and an outlet fluidly coupled with the inlet by one or more passageways. The one or more passageways are shaped to direct a fluid having particles through the body from the inlet toward the outlet. The one or more passageways may rotate the fluid in one or more cyclonic directions. A lat...