ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,022, issued on June 17, was assigned to Merck Sharp & Dohme LLC (Rahway, N.J.).

"Spiropiperidine allosteric modulators of nicotinic acetylcholine receptors" was invented by Ian M. Bell (Harleysville, Pa.), Brian T. Campbell (Doylestown, Pa.), Brendan M. Crowley (Collegeville, Pa.), James Fells (Hillsborough, N.J.), Kenneth J. Leavitt (Garnet Valley, Pa.), Anthony J. Roecker (Harleysville, Pa.), Andrew John Harvey (Paddington Spring Hill, Australia), Belinda C. Huff (Thebarton, Australia), Dharam Paul (Thebarton, Australia), Christophe Morice (Illkirch, France), Christophe Joseph (Illkirch, France), Patrick Bazzini (Illkirch, France), Jean-Marie Contreras (Illkirch, France), Fabric...