ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,778,978, issued on Nov. 3, was assigned to CIRQLE BIOMEDICAL CONTRACEPTION APS (Copenhagen N, Denmark).

"Vaginal contraceptive composition for reinforcement of mucus barrier properties" was invented by Thomas Crouzier (Sundbyberg, Sweden) and Ulrike Schimpf (Stockholm).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure relates to a vaginal contraceptive composition comprising one or more active ingredients and a physiological acceptable gelling agent, wherein at least one of the one or more active ingredients is a mucoadhesive polymer, wherein said mucoadhesive polymer has a molecular weight between 20.000 Da and 100.000 Da, wherein said mucoad...