Granted Patent
Utility
US 6,419,954 · App. 09/599,102
Tablets and methods for modified release of hydrophilic and other active agents
Inventors:
James Chu, Yisong Yang, Joseph A. Fix
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: May 19, 2000
Inventors
James Chu
Yisong Yang
Joseph A. Fix
Assignee (at issue)
Yamanouchi Pharmaceutical 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.