Granted Patent
Utility
US 6,423,864 · App. 09/448,671
Purification of N-[N-(3,3-dimethylbutyl)-L-&agr;-aspartyl]-L-phenylalanine 1-methyl ester via crystallization
Inventors:
Indra Prakash, Christine M. Moore, Kurt Wachholder
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Nov 24, 1999
Inventors
Indra Prakash
Christine M. Moore
Kurt Wachholder
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.