ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,496,600, issued on Dec. 16, was assigned to Andreas Stihl AG & Co. KG (Waiblingen, Germany).
"High-pressure cleaning device" was invented by Fabian Emanuel Broghammer (Lorch-Waldhausen, Germany), Christopher Tost (Auenwald, Germany) and Richard Fresow (Remseck, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A high-pressure cleaning device has a conveying pump and a conveying conduit with a spray opening. The conveying conduit conveys cleaning liquid, conveyed by the conveying pump, in a conveying direction from the conveying pump to the spray opening of the conveying conduit. A switch element is provided that has at least a first switched state ...