Granted Patent
Utility
US 6,700,002 · App. 10/053,297
Process for making vitamin E using hydrogen-tris(oxalato) phosphate
Inventors:
Werner Bonrath, Thomas Netscher, Ulrich Wietelmann
Patented Case
View Patent ↗
Granted: Mar 2, 2004
Filed: Jan 17, 2002
Inventors
Werner Bonrath
Thomas Netscher
Ulrich Wietelmann
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.