ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,143, issued on June 17, was assigned to SWIMC LLC (Cleveland).

"Corrosion-resistant primer and topcoat composition" was invented by Jason Lindquist (Lino Lake, Minn.), Jason Ness (Woodbury, Minn.), Josh Hewuse (Eagan, Minn.), Garry Edgington (Fridley, Minn.), Tapan Debroy (Victoria, Minn.) and James Gallagher (Minneapolis).

According to the abstract* released by the U.S. Patent & Trademark Office: "Compositions and methods involving latent base-catalyzed Michael addition reaction are described herein. The compositions described herein are derived from a Michael addition reaction and provide coatings, including primer coatings and direct-to-metal coatings that have optimal adhesio...