Granted Patent
Utility
US 6,174,874 · App. 09/398,356
Phosphonic acids derivatives as inhibitors of protein tyrosine phosphate 1B (PTP-1B)
Inventors:
Zhaoyin Wang, Claude Dufresne, Yves LeBlanc, Chun Sing Li, Jacques Yves Gauthier, Cheuk K. Lau, Michel Therien, Patrick Roy
Patented Case
View Patent ↗
Granted: Jan 16, 2001
Filed: Sep 17, 1999
Inventors
Zhaoyin Wang
Claude Dufresne
Yves LeBlanc
Chun Sing Li
Jacques Yves Gauthier
Cheuk K. Lau
Michel Therien
Patrick Roy
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.