Granted Patent
Utility
US 5,849,933 · App. 08/733,897
Process for producing ascorbic acid-2-monophosphates
Inventor:
Bruno Leuenberger
Patented Case
View Patent ↗
Granted: Dec 15, 1998
Filed: Oct 18, 1996
Inventor
Bruno Leuenberger
Assignee (at issue)
Roche Vitamins Inc.
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.