Granted Patent
Utility
US 6,722,780 · App. 10/355,833
Preparation of liquid dispersions
Inventors:
Hermann Stein, Klaus Viardot
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: Jan 31, 2003
Inventors
Hermann Stein
Klaus Viardot
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.