Granted Patent
Utility
US 6,191,121 · App. 09/543,947
Treatment of skin damage using polyenylphosphatidylcholine
Inventor:
Nicholas V. Perricone
Patented Case
View Patent ↗
Granted: Feb 20, 2001
Filed: Apr 6, 2000
Inventor
Nicholas V. Perricone
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.