Granted Patent
Utility
US 6,232,472 · App. 09/660,685
Synthesis of 4-[(5-substituted phenyl)-3-substituted-1H-pyrazol-1-yl]benzenesulfonamide
Inventors:
Paul O'Shea, Xin Wang, Richard D. Tillyer, Sophie-Dorothee Clas, Chad Dalton
Patented Case
View Patent ↗
Granted: May 15, 2001
Filed: Sep 13, 2000
Inventors
Paul O'Shea
Xin Wang
Richard D. Tillyer
Sophie-Dorothee Clas
Chad Dalton
Assignee (at issue)
Merck Frosst Canada Ltd.
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.