ALEXANDRIA, Va., May 26 -- United States Patent no. 12,637,451, issued on May 26, was assigned to CHIESI FARMACEUTICI S.P.A. (Parma, Italy).

"Amino quinazoline derivatives as P2X 3 inhibitors" was invented by Paolo Bruno (Parma, Italy), Matteo Biagetti (Parma, Italy), Claudio Fiorelli (Parma, Italy), Daniela Pizzirani (Parma, Italy), Daniele Pala (Parma, Italy), Paolo Ronchi (Parma, Italy), Charles Baker-Glenn (Parma, Italy), Herve Van De Poel (Parma, Italy) and Kim Louise Hirst (Parma, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to compounds of formula I inhibiting P2X purinoceptor 3; particularly the invention relates to compounds that are amino quinazoline derivative...