Granted Patent
Utility
US 5,169,622 · App. 07/638,597
Hair and skin care compositions containing discrete microdroplets of an oil in water stabilized by in situ copolymerization of a water-soluble vinyl monomer and a water-soluble acryl comonomer
Inventors:
Stephen L. Kopolow, William J. Burlant, Michael W. Helioff, Carmen D. Bires, Robert B. Login, Mohammed Tazi
Patented Case
View Patent ↗
Granted: Dec 8, 1992
Filed: Jan 8, 1991
Inventors
Stephen L. Kopolow
William J. Burlant
Michael W. Helioff
Carmen D. Bires
Robert B. Login
Mohammed Tazi
Assignee (at issue)
ISP INVESTMENTS LLC
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.