Granted Patent
Utility
US 6,448,233 · App. 09/462,384
Topical application of a combination of benzoyl peroxide and a second active ingredient
Inventors:
Jean-Marie Lefevre, Luppo Edens
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Mar 21, 2000
Inventors
Jean-Marie Lefevre
Luppo Edens
Assignee (at issue)
Cosmoferm B.V.
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.