IP Library › Granted Patent US 5,981,685
Granted Patent Utility
US 5,981,685 · App. 09/093,930

Organotin sulfonate catalysts and their manufacture

Inventors: Sri R. Seshadri, William D. Honnick, Melvin H. Gitlitz
Patented Case View Patent ↗
Granted: Nov 9, 1999 Filed: Jun 9, 1998
Inventors
Sri R. Seshadri
William D. Honnick
Melvin H. Gitlitz
Assignee (at issue)
Elf Atochem North America, Inc.

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 5,981,685
App. No.
09/093,930
Filed
1998-06-09
Granted
1999-11-09
Kind
A