Granted Patent
Utility
US 6,288,233 · App. 09/667,411
Enantioselective alkylation of tricyclic compounds
Inventors:
Shen-Chun Kuo, Frank Xing Chen
Patented Case
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Granted: Sep 11, 2001
Filed: Sep 21, 2000
Inventors
Shen-Chun Kuo
Frank Xing Chen
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.