Granted Patent
Utility
US 6,284,749 · App. 09/400,134
Preservative system for topically administrable pharmaceutical compositions containing a fatty acid/amino acid soap
Inventors:
Ernesto J. Castillo, Steven H. Gerson, Wesley Wehsin Han
Patented Case
View Patent ↗
Granted: Sep 4, 2001
Filed: Sep 21, 1999
Inventors
Ernesto J. Castillo
Steven H. Gerson
Wesley Wehsin Han
Assignee (at issue)
Alcon Manufacturing, 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.