ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,803, issued on Sept. 16, was assigned to Merck Patent GmbH (Darmstadt, Germany).

"Fused imidazopyridines as reversible inhibitors of Brutons Tyrosine Kinase (BTK)" was invented by Richard D. Caldwell (Billerica, Mass.), Lesley Liu-Bujalski (Billerica, Mass.), Justin Potnick (Billerica, Mass.), Constantin Neagu (Billerica, Mass.), Shashank Kulkarni (Billerica, Mass.), Reinaldo Jones (Billerica, Mass.) and Hui Qiu (Billerica, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to fused imidazo pyridine compounds, and pharmaceutically acceptable compositions thereof, useful as BTK inhibitors."

The patent was filed on Au...