Granted Patent
Utility
US 5,700,472 · App. 08/436,246
Oil-in-water emulsions
Inventors:
Gerhard Frisch, Zoltan Damo
Patented Case
View Patent ↗
Granted: Dec 23, 1997
Filed: May 17, 1995
Inventors
Gerhard Frisch
Zoltan Damo
Assignee (at issue)
Hoechst GmbH
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.