Granted Patent
Utility
US 5,239,095 · App. 07/786,037
Method for the preparation of flowable, aqueous dispersions of betaines
Inventor:
Volkbert Bade
Patented Case
View Patent ↗
Granted: Aug 24, 1993
Filed: Oct 31, 1991
Inventor
Volkbert Bade
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.