Granted Patent
Utility
US 6,656,935 · App. 09/925,892
Aromatic nitrogen-containing 6-membered cyclic compounds
Inventors:
Koichiro Yamada, Kenji Matsuki, Kenji Omori, Kohei Kikkawa
Patented Case
View Patent ↗
Granted: Dec 2, 2003
Filed: Aug 10, 2001
Inventors
Koichiro Yamada
Kenji Matsuki
Kenji Omori
Kohei Kikkawa
Assignee (at issue)
Tanabe Seiyaku Co., Ltd.
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.