Granted Patent
Utility
US 6,599,531 · App. 10/028,939
Method of making ibuprofen and narcotic analgesic compositions
Inventors:
Gregory P. Kushla, Jin-Wang Lai, Gerald P. Polli
Patented Case
View Patent ↗
Granted: Jul 29, 2003
Filed: Dec 21, 2001
Inventors
Gregory P. Kushla
Jin-Wang Lai
Gerald P. Polli
Assignee (at issue)
Knoll Pharmaceutical Company
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.