ALEXANDRIA, Va., April 7 -- United States Patent no. 12,593,949, issued on April 7, was assigned to ReBerni Ltd. (Kwai Chung, Hong Kong).
"Cleaning device and use" was invented by Bernhard Hug (Winterthur, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cleaning device (I) for suctioning a volumetric flow of particle-laden suction-air from an environment, includes: an air-receiving opening (2) having a first line cross section (21) for suctioning the volumetric flow of particle-laden suction-air from the environment in an active operating state; a liquid-receiving unit (4) having an immersion tube (3) for receiving a liquid, wherein the immersion tube (3) is connected at a first end (7) to the a...