Granted Patent
Utility
US 5,364,563 · App. 08/187,355
Powdered aqueous carotenoid dispersions
Inventors:
Ernst Cathrein, Hermann Stein, Hansjorg Stoller, Klaus Viardot
Patented Case
View Patent ↗
Granted: Nov 15, 1994
Filed: Jan 25, 1994
Inventors
Ernst Cathrein
Hermann Stein
Hansjorg Stoller
Klaus Viardot
Assignee (at issue)
HOFFMANN-LA ROCHE 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.