Granted Patent
Utility
US 6,316,388 · App. 08/333,882
N-heteroaryl-N'-(pyrid-2-yl-sulfonyl) ureas, processes for their preparation, and their use as herbicides and plant growth regulators
Inventors:
Rainer Schutze, Heinz Kehne, Klaus Bauer, Hermann Bieringer
Patented Case
View Patent ↗
Granted: Nov 13, 2001
Filed: Nov 3, 1994
Inventors
Rainer Schutze
Heinz Kehne
Klaus Bauer
Hermann Bieringer
Assignee (at issue)
Hoechst Schering Agrevo GmbH
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.