Granted Patent
Utility
US 5,972,642 · App. 08/989,860
Astaxanthin-producing yeast cells, methods for their preparation and their use
Inventors:
Bent Flen.o slashed., Ib Christensen, Robert Larsen, Steffen Radich Johansen, Eric A. Johnson
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Dec 12, 1997
Inventors
Bent Flen.o slashed.
Ib Christensen
Robert Larsen
Steffen Radich Johansen
Eric A. Johnson
Assignee (at issue)
DSM N.V.
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.