ALEXANDRIA, Va., June 5 -- United States Patent no. 12,274,813, issued on April 15, was assigned to Coloplast A/S (Humlebaek, Denmark).

"Urinary catheter" was invented by Kim Bager (Lyngby, Denmark) and Frederik Seier Wermuth Thingbak (Gilleleje, Denmark).

According to the abstract* released by the U.S. Patent & Trademark Office: "An intermittent hydrophilic urinary catheter (1) with a hydrophilic coating (9) and comprising a plurality of drainage openings (5) is provided. The outer surface (8) of the tubular portion (1a) forms a projection (410) encircling the openings in the outer surface and extending above the hydrophilic surface (411) when the hydrophilic material is in the non-swelled condition."

The patent was filed on Feb. 7, 202...