Granted Patent
Utility
US 6,576,656 · App. 09/763,241
Oxindole derivative
Inventors:
Teruhisa Tokunaga, Takashi Umezome, W. Ewan Hume, Ryu Nagata, Kazuhiko Okazaki, Yasuyuki Ueki, Kazuo Kumagai
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: Mar 22, 2001
Inventors
Teruhisa Tokunaga
Takashi Umezome
W. Ewan Hume
Ryu Nagata
Kazuhiko Okazaki
Yasuyuki Ueki
Kazuo Kumagai
Assignee (at issue)
Sumitomo Pharmaceuticals Company Limited
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.