Granted Patent
Utility
US 6,444,618 · App. 09/491,831
Crop protection emulsifiable concentrate containing defoaming agents
Inventors:
Michael Aven, Friedrich Schmidt
Patented Case
View Patent ↗
Granted: Sep 3, 2002
Filed: Jan 26, 2000
Inventors
Michael Aven
Friedrich Schmidt
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.