Granted Patent
Utility
US 6,200,993 · App. 09/551,040
Heterosubstituted pyridine derivatives as PDE4 inhibitors
Inventors:
Bernard Cote, Richard Friesen, Richard Frenette, Mario Girard, Yves Girard, Cédrickx GODBOUT, Daniel Guay, Pierre Hamel, Marc Blouin, Yves Ducharme, Sylvie Prescott
Patented Case
View Patent ↗
Granted: Mar 13, 2001
Filed: Apr 17, 2000
Inventors
Bernard Cote
Richard Friesen
Richard Frenette
Mario Girard
Yves Girard
Cédrickx GODBOUT
Daniel Guay
Pierre Hamel
Marc Blouin
Yves Ducharme
Sylvie Prescott
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.