ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,383,421, issued on Aug. 12, was assigned to Contraline Inc. (Charlottesville, Va.).
"Contraceptive devices" was invented by Kevin Eisenfrats (Charlottesville, Va.) and Gregory Grover (Charlottesville, Va.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Described are methods for reversible occlusion of a body lumen by way of degradation as a result of exposure to one or more stimuli such as light. The methods include administering one or more substance(s) into a body lumen of a subject and forming a stimuli-responsive polymer mass in the body lumen from the one or more substance(s). The mass is sufficient to occlude the body lumen in a manner that prevent...