Granted Patent
Utility
US 5,344,949 · App. 08/092,303
Method for the synthesis of surface-active anion-cation complexes
Inventors:
Gotz Koerner, Klaus-Dieter Klein, Dietmar Schaefer
Patented Case
View Patent ↗
Granted: Sep 6, 1994
Filed: Jul 14, 1993
Inventors
Gotz Koerner
Klaus-Dieter Klein
Dietmar Schaefer
Assignee (at issue)
Th. Goldschmidt. AG
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.