ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,552,178, issued on Feb. 17, was assigned to Kateeva Inc. (Newark, Calif.).

"Ejection control using imager" was invented by Christopher R. Hauf (Belmont, Calif.), David Darrow (Pleasanton, Calif.) and David Donovan (Newark, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A printing system includes a substrate support, a printhead assembly positioned facing the substrate support, and an imager. The printhead assembly includes a plurality of dispensing nozzles extending in an ejection direction towards the substrate support and a plurality of marks. The imager is movable relative to the printhead assembly and oriented in a direction opposite to the e...