ALEXANDRIA, Va., July 16 -- United States Patent no. 12,668,972, issued on June 30.
"Fire-prevention building roof system" was invented by Eungtaek Lee (Anaheim, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fire-prevention building roof system according to an embodiment of the present disclosure includes a roof structural surface having a slope, at least one sprinkler installed at a ridge of the roof structural surface, and a plurality of roof tiles installed to cover the roof structural surface, wherein the plurality of roof tiles comprise a plurality of roof tile groups, wherein boundaries between the plurality of roof tiles of an upper roof tile group are offset from boundaries between the plur...