Granted Patent
Utility
US 5,698,684 · App. 07/835,447
Process for the production of alkyl glycosides
Inventors:
Karlheinz Hill, Manfred Weuthen, Hans-Peter Koehler
Patented Case
View Patent ↗
Granted: Dec 16, 1997
Filed: Feb 24, 1992
Inventors
Karlheinz Hill
Manfred Weuthen
Hans-Peter Koehler
Assignee (at issue)
Henkel Kommanditgesellschaft auf Aktien
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.