IP Library Granted Patent US 6,500,952
Granted Patent Utility
US 6,500,952 · App. 09/664,201

Processes for preparing aminophenylsulfonylureas, and intermediates therefor

Inventors: Gerhard Schnabel, Jan Vermehren, Lothar Willms
Patented Case View Patent ↗
Granted: Dec 31, 2002 Filed: Sep 18, 2000
Inventors
Gerhard Schnabel
Jan Vermehren
Lothar Willms
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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 6,500,952
App. No.
09/664,201
Filed
2000-09-18
Granted
2002-12-31
Kind
B1