Granted Patent
Utility
US 6,503,739 · App. 09/926,386
Processes for producing S,S-2-hydroxypropylenediamine-N-N′-disuccinic acid
Inventor:
Makoto Kaneko
Patented Case
View Patent ↗
Granted: Jan 7, 2003
Filed: Oct 24, 2001
Inventor
Makoto Kaneko
Assignee (at issue)
MITSUBISHI ELECTRIC CORPORATION
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.