Granted Patent
Utility
US 6,183,774 · App. 09/375,683
Stabilizing vitamin A derivatives by encapsulation in lipid vesicles formed with alkylammonium fatty acid salts
Inventors:
Duncan Aust, Michael A. Ross, James Michael Wilmott, James A. Hayward
Patented Case
View Patent ↗
Granted: Feb 6, 2001
Filed: Aug 17, 1999
Inventors
Duncan Aust
Michael A. Ross
James Michael Wilmott
James A. Hayward
Assignee (at issue)
Collaborative Laboratories, 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.