Granted Patent
Utility
US 5,202,479 · App. 07/649,021
Process for preparing glycine
Inventors:
Kenji Fujiwara, Nobutaka Ueda, Yuji Matsuu, Hiroshi Kato, Atsuhiko Hiai
Patented Case
View Patent ↗
Granted: Apr 13, 1993
Filed: Feb 1, 1991
Inventors
Kenji Fujiwara
Nobutaka Ueda
Yuji Matsuu
Hiroshi Kato
Atsuhiko Hiai
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.