ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,814, issued on Nov. 25, was assigned to Witt GmbH & Co. Holding und Handels-KG (Witten, Germany).

"Flame trap" was invented by Martin Bender (Dortmund, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "Device (1) for preventing flashback in a pipe carrying a flammable gas, more particularly a flame trap, wherein the device (1) has a housing (8), with at least one onward flow barrier (9) disposed therein, at least one gas non-return valve (10) disposed therein and at least one sintered body (11) disposed therein, wherein the device (1) comprises a sensor device (2), wherein the sensor device (2) captures and stores data such as the frequency and...