US Patent Issued to Hewlett-Packard Development on June 17 for "Fluid ejection die with antechamber sidewalls that curve inward" (Oregon Inventors)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,330,158, issued on June 17, was assigned to Hewlett-Packard Development Co. LP (Spring, Texas).

"Fluid ejection die with antechamber sidewalls that curve inward" was invented by Kathryn H. Cyr (Corvallis, Ore.) and Debora J. Thomas (Corvallis, Ore.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In one example in accordance with the present disclosure, a fluid ejection die is described. The fluid ejection die includes a fluid feed slot to deliver fluid from a reservoir to an array of ejection chambers fluid connected to the fluid feed slot. Each ejection chamber includes at least one fluid actuator and an opening through which fluid is to be ejected. The...