Granted Patent
Utility
US 5,591,886 · App. 08/445,346
Process for the crystallizing L-.alpha.-aspartyl-L-phenylalanine methyl ester from the solution
Inventors:
Hiroshi Ichiki, Ryoichi Taneda, Hiroyuki Itoh, Yoshitsugu Kono
Patented Case
View Patent ↗
Granted: Jan 7, 1997
Filed: Jun 16, 1995
Inventors
Hiroshi Ichiki
Ryoichi Taneda
Hiroyuki Itoh
Yoshitsugu Kono
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.