Granted Patent
Utility
US 5,969,134 · App. 09/184,152
Carboxylic acid derivatives, their preparation and use
Inventors:
Hartmut Riechers, Dagmar Klinge, Wilhelm Amberg, Andreas Kling, Stefan Muller, Ernst Baumann, Joachim Rheinheimer, Uwe Josef Vogelbacher, Wolfgang Wernet, Liliane Unger, Manfred Raschack
Patented Case
View Patent ↗
Granted: Oct 19, 1999
Filed: Nov 2, 1998
Inventors
Hartmut Riechers
Dagmar Klinge
Wilhelm Amberg
Andreas Kling
Stefan Muller
Ernst Baumann
Joachim Rheinheimer
Uwe Josef Vogelbacher
Wolfgang Wernet
Liliane Unger
Manfred Raschack
Assignee (at issue)
BASF SE
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.