Granted Patent
Utility
US 5,002,952 · App. 07/385,998
Readily absorbed pharmaceutical composition
Inventors:
Nobuo Kondo, Tsunetaka Nakajima, Masahiro Watanabe, Kazumasa Yokoyama, Takahiro Haga, Nobutoshi Yamada, Hideo Sugi, Toru Koyanagi
Patented Case
View Patent ↗
Granted: Mar 26, 1991
Filed: Jul 27, 1989
Inventors
Nobuo Kondo
Tsunetaka Nakajima
Masahiro Watanabe
Kazumasa Yokoyama
Takahiro Haga
Nobutoshi Yamada
Hideo Sugi
Toru Koyanagi
Assignees (at issue)
ISHIHARA SANGYO KAISHA, LTD.
Green Cross Corporation
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.