ALEXANDRIA, Va., June 19 -- United States Patent no. 12,329,164, issued on June 17, was assigned to Insight Pharmaceuticals Corp. (Tarrytown, N.Y.).

"Repellant formulation and method" was invented by Vadim Mitlitski (Demarest, N.J.), Richard Robert Tenore (Narrowsburg, N.Y.) and Erica Rattigan Tyree (Amherst, Va.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A formulation for repelling insects and arthropods comprises about 0.5% by weight to about 4.0% by weight of an active ingredient and an emulsifier. The active ingredient includes a mixture of one or more natural essential oils. A method for making the repellant formulation comprises forming an oil-in-water emulsion by mixing one or more of the natural ...