Granted Patent
Utility
US 5,668,093 · App. 08/647,871
Use of alkenylsuccinic acid half-amides
Inventors:
Gernot Kremer, Horst Lorke
Patented Case
View Patent ↗
Granted: Sep 16, 1997
Filed: May 3, 1996
Inventors
Gernot Kremer
Horst Lorke
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.