Granted Patent
Utility
US 4,733,009 · App. 06/886,160
Method for separating glycine and L-serine from a solution containing same
Inventors:
Shoichiro Miyahara, Toshio Matsumoto, Tooru Miyahara, Akio Sakaguchi, Kazunari Nitta
Patented Case
View Patent ↗
Granted: Mar 22, 1988
Filed: Jul 16, 1986
Inventors
Shoichiro Miyahara
Toshio Matsumoto
Tooru Miyahara
Akio Sakaguchi
Kazunari Nitta
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.