ALEXANDRIA, Va., June 2 -- United States Patent no. 12,646,230, issued on June 2, was assigned to RIVE INC. (San Francisco).

"System and method for rendering path coverage mask with an antialiasing stroke in interactive computer graphics" was invented by Christopher Dalton (San Francisco).

According to the abstract* released by the U.S. Patent & Trademark Office: "An improved interactive graphics tool including an algorithm and technique to efficiently and elegantly render smooth lines to build or develop interactive graphics is disclosed. The new algorithm is configured to render an anti-aliased coverage mask for any path, using a single GPU shader program and a single GPU draw call. The present invention is a solution to prior two-dimen...