ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,469, issued on March 24, was assigned to SPM Oil & Gas Inc. (Fort Worth, Texas).
"Valve cartridge assembly for a fluid pump" was invented by Justin Poehls (Glen Rose, Texas), David T. Figgs (Fort Worth, Texas), Nuder Said (Fort Worth, Texas) and Chiawei Steven Su (Arlington, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A valve cartridge assembly may include a valve cartridge housing defining a suction chamber that is open at a first end of the valve cartridge housing and one or more first passageways through the valve cartridge housing that lead into the suction chamber, and a discharge chamber that is open at a second end of the valve cart...