ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,870, issued on May 6, was assigned to BMIC LLC (Dallas).
"Roofing shingles with sealant pressure relief channel" was invented by Olan T. Leitch (Mt. Juliet, Tenn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A roofing shingle has an upper surface, a lower surface, and a sealant material applied along the lower surface. A pressure relief channel is formed along the lower surface of the roofing shingle, with a release strip applied over the pressure relief channel. When the roofing shingle is paired with another roofing shingle in a stack, the sealant material of the roofing shingle is arranged in registration with the release strip and pressure rel...