ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,558,256, issued on Feb. 24, was assigned to Bayer Oy (Turku, Finland).
"Intrauterine system with a locking part" was invented by Mikael Stolt (Vahto, Finland), Taina Tjader (Piispanristi, Finland), Christine Talling (Turku, Finland), Risto Hakala (Turku, Finland), Heikki Salo (Raisio, Finland), Mira Piki (Turku, Finland), Marina Allen (Turku, Finland), Jari Riski (Parainen, Finland) and Petri Perala (Paimio, Finland).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is an intrauterine system (100, 300, 400, 500, 600) comprising a frame (102, 302, 402, 502, 602), a removal thread (218, 326, 436, 626) and at least one pharmaceutically active agent. ...