Granted Patent
Utility
US 6,638,561 · App. 09/719,711
Microbial arachidonic acid (ARA) for use in marine feed
Inventors:
Robert Franciscus Beudeker, Peter Coutteau
Patented Case
View Patent ↗
Granted: Oct 28, 2003
Filed: Mar 19, 2001
Inventors
Robert Franciscus Beudeker
Peter Coutteau
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.