Granted Patent
Utility
US 5,707,836 · App. 08/612,437
Production of alkylene or phenylenediamine disuccinic acid from fumaric acid and a diamine using lyase from microbes
Inventors:
Takakazu Endo, Yoshihiro Hashimoto, Rikiya Takahashi
Patented Case
View Patent ↗
Granted: Jan 13, 1998
Filed: Mar 7, 1996
Inventors
Takakazu Endo
Yoshihiro Hashimoto
Rikiya Takahashi
Assignee (at issue)
Nitto Chemical Industry Co., Ltd.
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.