Granted Patent
Utility
US 5,300,653 · App. 07/995,959
Separation method of amino acids
Inventors:
Shohei Nozaki, Naohiro Murata, Kiyoo Miyazaki
Patented Case
View Patent ↗
Granted: Apr 5, 1994
Filed: Dec 23, 1992
Inventors
Shohei Nozaki
Naohiro Murata
Kiyoo Miyazaki
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.