Granted Patent
Utility
US 6,509,341 · App. 09/529,860
Carboxylic acid derivatives, carrying amido side-chains; production and use as endothelin receptor antagonists
Inventors:
Wilhelm Amberg, Rolf Jansen, Stefan Hergenröder, Manfred Raschack, Liliane Unger
Patented Case
View Patent ↗
Granted: Jan 21, 2003
Filed: Apr 20, 2000
Inventors
Wilhelm Amberg
Rolf Jansen
Stefan Hergenröder
Manfred Raschack
Liliane Unger
Assignee (at issue)
Abbott Laboratories
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.