Granted Patent
Utility
US 5,721,246 · App. 08/433,493
Heterobicyclic sulfonamide and sulfonic ester derivatives
Inventors:
Hiroshi Yoshino, Takashi Owa, Tatsuo Okauchi, Kentaro Yoshimatsu, Naoko Sugi, Takeshi Nagasu, Yoichi Ozawa, Nozomu Koyanagi, Kyosuke Kito
Patented Case
View Patent ↗
Granted: Feb 24, 1998
Filed: May 10, 1995
Inventors
Hiroshi Yoshino
Takashi Owa
Tatsuo Okauchi
Kentaro Yoshimatsu
Naoko Sugi
Takeshi Nagasu
Yoichi Ozawa
Nozomu Koyanagi
Kyosuke Kito
Assignee (at issue)
Eisai Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.