ALEXANDRIA, Va., June 18 -- United States Patent no. RE50,455, issued on June 10, was assigned to CHUGAI SEIYAKU K.K. (Tokyo).

"Pyrazolopyridine derivative having GLP-1 receptor agonist effect" was invented by Hitoshi Yoshino (Shizuoka, Japan), Satoshi Tsuchiya (Shizuoka, Japan), Atsushi Matsuo (Shizuoka, Japan), Tsutomu Sato (Shizuoka, Japan), Masahiro Nishimoto (Shizuoka, Japan), Kyoko Oguri (Shizuoka, Japan), Hiroko Ogawa (Shizuoka, Japan), Yoshikazu Nishimura (Shizuoka, Japan), Yoshiyuki Furuta (Kanagawa, Japan), Hirotaka Kashiwagi (Shizuoka, Japan), Nobuyuki Hori (Shizuoka, Japan), Takuma Kamon (Shizuoka, Japan), Takuya Shiraishi (Shizuoka, Japan), Shoshin Yoshida (Shizuoka, Japan), Takahiro Kawai (Shizuoka, Japan), Satoshi Tanida (Sh...