Granted Patent
Utility
US 4,584,121 · App. 06/686,729
Amphoteric compounds, mixtures containing these compounds for disinfectant cleaning, and processes for the preparation of these compounds and mixtures
Inventors:
Gunter Blaschke, Adolf May, Hans-Walter Bucking, Karl H. Wallhausser
Patented Case
View Patent ↗
Granted: Apr 22, 1986
Filed: Dec 27, 1984
Inventors
Gunter Blaschke
Adolf May
Hans-Walter Bucking
Karl H. Wallhausser
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.