IP Library Granted Patent US 6,498,159
Granted Patent Utility
US 6,498,159 · App. 09/508,197

Phthalazine derivatives and remedies for erectile dysfunction

Inventors: Nobuhisa Watanabe, Norio Karibe, Kazuki Miyazaki, Fumihiro Ozaki, Atsushi Kamada, Shuhei Miyazawa, Yoshimitsu Naoe, Toshihiko Kaneko, Itaru Tsukada, Tadashi Nagakura, Hiroki Ishihara, Kohtarou Kodama, Hideyuki Adachi
Patented Case View Patent ↗
Granted: Dec 24, 2002 Filed: Mar 8, 2000
Inventors
Nobuhisa Watanabe
Norio Karibe
Kazuki Miyazaki
Fumihiro Ozaki
Atsushi Kamada
Shuhei Miyazawa
Yoshimitsu Naoe
Toshihiko Kaneko
Itaru Tsukada
Tadashi Nagakura
Hiroki Ishihara
Kohtarou Kodama
Hideyuki Adachi
Assignee (at issue)
Eisai Inc.

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Quick Facts
Patent No.
US 6,498,159
App. No.
09/508,197
Filed
2000-03-08
Granted
2002-12-24
Kind
B1