Granted Patent
Utility
US 6,500,963 · App. 10/076,006
Process for preparing optically active dihydropyrones
Inventors:
Markus Sauter, Burkhard Jaeger
Patented Case
View Patent ↗
Granted: Dec 31, 2002
Filed: Feb 14, 2002
Inventors
Markus Sauter
Burkhard Jaeger
Assignee (at issue)
BOEHRINGER INGELHEIM PHARMA GMBH & CO. KG
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.