Granted Patent
Utility
US 6,461,858 · App. 09/237,334
Enzyme activated supports for enantiomeric separations
Inventors:
Richard L. Gabriel, David A. Swanson
Patented Case
View Patent ↗
Granted: Oct 8, 2002
Filed: Jan 26, 1999
Inventors
Richard L. Gabriel
David A. Swanson
Assignee (at issue)
Pharm-Eco 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.