Granted Patent
Utility
US 6,723,340 · App. 10/029,134
Optimal polymer mixtures for gastric retentive tablets
Inventors:
Gloria M. Gusler, Bret Berner, Mei Ying Chau, Aimee Padua
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: Oct 25, 2001
Inventors
Gloria M. Gusler
Bret Berner
Mei Ying Chau
Aimee Padua
Assignee (at issue)
Depomed, 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.