Granted Patent
Utility
US 6,375,988 · App. 09/172,270
Drug composition with controlled drug release rate
Inventors:
Makoto Suzuki, Kenji Ishigaki, Minoru Okada, Kenji Ono, Shuichi Kasai, Katsumi Imamori
Patented Case
View Patent ↗
Granted: Apr 23, 2002
Filed: Oct 14, 1998
Inventors
Makoto Suzuki
Kenji Ishigaki
Minoru Okada
Kenji Ono
Shuichi Kasai
Katsumi Imamori
Assignee (at issue)
S.S.P. 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.