ALEXANDRIA, Va., July 9 -- United States Patent no. 12,350,462, issued on July 8, was assigned to NORTHGATE TECHNOLOGIES INC. (Elgin, Ill.).

"Smoke suction flow regulator" was invented by Paul Fowler (Belvidere, Ill.), Alexander Carlo Buscaglia (Franklin, Ind.) and Ju-Hyoung Kim (Naperville, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A smoke evacuation flow regulator for use with a suction source to rapidly remove excess smoke during an endoscopic surgical procedure is described. The smoke evacuation regulator may include a body having a gas pathway and a knob assembly threadably attached to the body that is sized to completely open or completely close the gas pathway in a single revolution of the k...