ALEXANDRIA, Va., June 5 -- United States Patent no. 12,278,591, issued on April 15, was assigned to GAF Energy LLC (Parsippany, N.J.).

"Roofing shingles for mimicking the appearance of photovoltaic modules" was invented by Thierry Nguyen (San Francisco), Matthew Grigsby (San Francisco), Anna Wojtowicz (Santa Clara, Calif.), Richard Perkins (San Jose, Calif.), Henry Krevor (San Carlos, Calif.), Caleb Cheung (San Jose, Calif.), Rory Runser (San Diego), Dan Hua (San Jose, Calif.) and Janany Kugathasan (Langley, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system including a plurality of photovoltaic modules and a plurality of roofing shingles installed on a roof deck. Each of the photovoltaic modules...