ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,560,531, issued on Feb. 24, was assigned to Hewlett-Packard Development Co. LP (Spring, Texas).

"Integrated fluid ejection and spectroscopic sensing" was invented by Fausto D'Apuzzo (Palo Alto, Calif.), Viktor Shkolnikov (Palo Alto, Calif.) and Alexander N. Govyadinov (Corvallis, Ore.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An integrated fluid ejection and spectroscopic sensing system may include a fluid ejector to eject a droplet of fluid through an ejection orifice towards a deposition site, a sensor array, a dispersive element to project light onto the sensor array. The dispersive element, the sensor and the fluid ejector are joined as part of...