ALEXANDRIA, Va., July 30 -- United States Patent no. 12,370,078, issued on July 29, was assigned to NEXT Life Sciences Inc. (San Luis Obispo, Calif.).

"Apparatus and method for delivery and/or removal of occlusions in the body" was invented by Steven R. Bacich (Half Moon Bay, Calif.), Matthew Thomas Yurek (San Diego), Michael Hartsfield (Poway, Calif.), Jack Greelis (Carlsbad, Calif.) and Luke Fox (San Luis Obispo, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Delivery systems for providing occlusive hydrogels in a tube lumen or void space within the body including but not limited to a reproductive tract such as the vas deferens or fallopian tubes for contraception are described. The delivery systems...