Granted Patent
Utility
US 5,879,716 · App. 08/076,824
Methods and compositions for topical delivery of benzoyl peroxide
Inventors:
Martin Katz, Chung-Heng Cheng, Sergio Nacht
Patented Case
View Patent ↗
Granted: Mar 9, 1999
Filed: Jun 14, 1993
Inventors
Martin Katz
Chung-Heng Cheng
Sergio Nacht
Assignee (at issue)
Advanced Poymer Systems, 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.