Granted Patent
Utility
US 6,733,783 · App. 10/016,651
Controlled release hydrocodone formulations
Inventors:
Benjamin Oshlack, John K. Masselink, Hua-Pin Huang, Alfred Tonelli
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: Oct 30, 2001
Inventors
Benjamin Oshlack
John K. Masselink
Hua-Pin Huang
Alfred Tonelli
Assignee (at issue)
Euro-Celtique S.A.
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.