Granted Patent
Utility
US 4,847,409 · App. 07/284,042
Recovery of L-amino acid isomers from their racemic mixtures
Inventors:
Gene E. Kidman, William Everette Gardner
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: Dec 14, 1988
Inventors
Gene E. Kidman
William Everette Gardner
Assignee (at issue)
The NutraSweet Company
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.