ALEXANDRIA, Va., June 9 -- United States Patent no. 12,285,769, issued on April 29, was assigned to ABC TECHNOLOGIES INC. (Toronto).

"Pulsating spray cleaning nozzle assembly and method" was invented by Chunling Zhao (Ellicott City, Md.) and Aakash Deora (Jessup, Md.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed includes embodiments of a pulsed spray nozzle assembly, comprising a nozzle housing having a cavity with an inlet configured to receive a flow of fluid therein. A flow conditioning insert configured to be inserted inside the cavity of the housing to communicate fluid from the inlet to an interaction region downstream from the flow conditioning insert along an inlet axis within the housing,...