Granted Patent
Utility
US 6,627,757 · App. 10/105,710
Enantioselective synthesis of azetidinone intermediate compounds
Inventors:
Xiaoyong Fu, Timothy L. McAllister, T.K. Thiruvengadam, Chou-Hong Tann
Patented Case
View Patent ↗
Granted: Sep 30, 2003
Filed: Mar 25, 2002
Inventors
Xiaoyong Fu
Timothy L. McAllister
T.K. Thiruvengadam
Chou-Hong Tann
Assignee (at issue)
SCHERING 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.