Granted Patent
Utility
US 6,723,879 · App. 10/275,634
Process for preparing amino compounds by using salen-manganese complexes as the catalyst
Inventors:
Tsutomu Katsuki, Yoshinori Kohmura
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: Nov 7, 2002
Inventors
Tsutomu Katsuki
Yoshinori Kohmura
Assignee (at issue)
Japan Science and Technology
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.