US Patent Issued to HEWLETT-PACKARD DEVELOPMENT on May 20 for "Recirculation devices with check valve" (Spanish Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,218, issued on May 20, was assigned to HEWLETT-PACKARD DEVELOPMENT COMPANY LP (Spring, Texas).

"Recirculation devices with check valve" was invented by David Butinya Teixido (Sant Cugat del Valles, Spain), Dorkaitz Alain Vazquez Fernandez (Sant Cugat del Valles, Spain) and Josep Ortiz Mompel (Sant Cugat del Valles, Spain).

According to the abstract* released by the U.S. Patent & Trademark Office: "Examples relate to a method to recirculate print agent in a printing system. The method comprises detecting a recirculation device comprising a check valve and detecting a printhead connected in parallel to the detected recirculation device. The method further comprises selecting a prin...