Granted Patent
Utility
US 6,784,309 · App. 09/550,316
Method for the purification of N-[N-(3,3-dimethylbutyl)-L-&agr;-aspartyl]-L-phenylalanine 1-methyl ester
Inventors:
Indra Prakash, Kurt Wachholder
Patented Case
View Patent ↗
Granted: Aug 31, 2004
Filed: Apr 14, 2000
Inventors
Indra Prakash
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.