Granted Patent
Utility
US 6,287,587 · App. 09/112,317
Process for producing sustained-release preparation by in-water drying
Inventors:
Takada Shigeyuki, Taira Keiko, Iwasa Susumu
Patented Case
View Patent ↗
Granted: Sep 11, 2001
Filed: Jul 9, 1998
Inventors
Takada Shigeyuki
Taira Keiko
Iwasa Susumu
Assignee (at issue)
Takeda Chemical Industries 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.