Granted Patent
Utility
US 6,572,889 · App. 10/092,826
Controlled release solid dosage carbamazepine formulations
Inventor:
Jian-Hwa Guo
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: Mar 7, 2002
Inventor
Jian-Hwa Guo
Assignee (at issue)
Noveon IP Holdings Corp.
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.