Granted Patent
Utility
US 6,018,043 · App. 08/930,211
Process for preparing galanthamine derivatives by asymmetric reduction
Inventors:
Ulrich Conrad Dyer, Jane Marie Paul, Raymond McCague
Patented Case
View Patent ↗
Granted: Jan 25, 2000
Filed: Feb 2, 1998
Inventors
Ulrich Conrad Dyer
Jane Marie Paul
Raymond McCague
Assignee (at issue)
Janssen Pharmaceutica NV
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.