Granted Patent
Utility
US 5,053,532 · App. 07/547,429
One-pot process for the preparation of .alpha.-L-aspartyl-L-phenylalanine methyl ester hydrochloride
Inventors:
John B. Hill, Yefim Gelman, Hugh L. Dryden, Jr., Robert A. Erickson, Kuang Hsu, Mark R. Johnson
Patented Case
View Patent ↗
Granted: Oct 1, 1991
Filed: Jul 3, 1990
Inventors
John B. Hill
Yefim Gelman
Hugh L. Dryden, Jr.
Robert A. Erickson
Kuang Hsu
Mark R. Johnson
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.