Granted Patent
Utility
US 6,143,746 · App. 09/154,051
Tetracyclic cyclic GMP-specific phosphodiesterase inhibitors, process of preparation and use
Inventors:
Alain Claude-Marie Daugan, Francoise Gellibert
Patented Case
View Patent ↗
Granted: Nov 7, 2000
Filed: Sep 16, 1998
Inventors
Alain Claude-Marie Daugan
Francoise Gellibert
Assignee (at issue)
ICOS 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.