Granted Patent
Utility
US 6,235,680 · App. 08/863,476
N-acylsulfonamides, novel mixtures of herbicides and antidotes, and their use
Inventors:
Frank Ziemer, Klaus Bernhard Haaf, Lothar Willms, Klaus Bauer, Hermann Bieringer, Christopher Hugh Rosinger
Patented Case
View Patent ↗
Granted: May 22, 2001
Filed: May 27, 1997
Inventors
Frank Ziemer
Klaus Bernhard Haaf
Lothar Willms
Klaus Bauer
Hermann Bieringer
Christopher Hugh Rosinger
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.