Granted Patent
Utility
US 6,399,636 · App. 09/810,119
Tri-aryl-substituted-ethane PDE4 inhibitors
Inventors:
Richard Freisen, Yves Ducharme, Bernard Cote, Marc Blouin, Evelyn Martins, Daniel Guay, Pierre Hamel, Mario Girard, Richard Frenette, Sebastien Laliberte
Patented Case
View Patent ↗
Granted: Jun 4, 2002
Filed: Mar 16, 2001
Inventors
Richard Freisen
Yves Ducharme
Bernard Cote
Marc Blouin
Evelyn Martins
Daniel Guay
Pierre Hamel
Mario Girard
Richard Frenette
Sebastien Laliberte
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.