ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,815, issued on Nov. 25, was assigned to Minimax Viking Patent Management GmbH (Bad Oldesloe, Germany).

"Fire protection systems for rooftop solar panel installations, methods and water spray nozzles therefor" was invented by Georg Baumann (Lubeck, Germany), Sven Stenke (Lubeck, Germany), Thorsten Gieseke (GroBhandsdorf, Germany) and Bjorn Schmidt (Reinfeld, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "Fire protection systems for a rooftop solar panel installation with solar panels. The fire protection system has a group of water spray nozzles with a metric K-factor of 20 or less to discharge firefighting fluid to a coverage area of the roo...