Granted Patent
Utility
US 6,165,946 · App. 09/297,481
Process for the facilitated waste disposal of working substances based on water-in-oil invert emulsions
Inventors:
Heinz Mueller, Claus-Peter Herold, Thomas Foerster, Stephan von Tapavicza, Johann F. Fues
Patented Case
View Patent ↗
Granted: Dec 26, 2000
Filed: Apr 30, 1999
Inventors
Heinz Mueller
Claus-Peter Herold
Thomas Foerster
Stephan von Tapavicza
Johann F. Fues
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.