Granted Patent
Utility
US 4,980,284 · App. 07/528,755
Method of preparing D-.alpha.-amino acids
Inventors:
Kyriakos Makryaleas, Karlheinz Drauz
Patented Case
View Patent ↗
Granted: Dec 25, 1990
Filed: May 25, 1990
Inventors
Kyriakos Makryaleas
Karlheinz Drauz
Assignee (at issue)
Degussa AG
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.