ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,404,856, issued on Sept. 2, was assigned to BJ Energy Solutions LLC (The Woodlands, Texas).

"Cover for fluid systems and related methods" was invented by Guillermo Rodriguez (Houston), Heber Martinez (Houston), Ricardo Rodriguez-Ramon (Houston) and Tony Yeung (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of a high-pressure, high power, reciprocating positive displacement fluid pumping system and methods are included. The system may include a high-pressure, high power, reciprocating positive displacement pump including a pump plunger, a fluid end block assembly, and a fluid cover. The fluid end block assembly may include a fluid end...