ALEXANDRIA, Va., June 12 -- United States Patent no. 12,295,949, issued on May 13, was assigned to Alumend LLC (Sioux Falls, S.D.).

"Treatment of the gastrointestinal tract with dimeric naphthalimide compounds" was invented by Barbara R. Haberer (Hartford, S.D.) and Ronald E. Utecht (Madison, S.D.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are methods for treating stenosis in the digestive system and conditions associated with irregular esophageal tone with dimeric naphthalimide compounds and their pharmaceutically acceptable salts. Also disclosed are methods for enhancing recovery following esophageal surgery that entail treatment of the surgical area with dimeric naphthalimide compounds and t...