IP Library › Granted Patent US 6,632,846
Granted Patent Utility
US 6,632,846 · App. 09/963,349

Integrated urea manufacturing plants and processes

Inventors: Richard O. Sheppard, Dennis L. Yakobson
Patented Case View Patent ↗
Granted: Oct 14, 2003 Filed: Sep 25, 2001
Inventors
Richard O. Sheppard
Dennis L. Yakobson
Assignee (at issue)
Rentech, 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 6,632,846
App. No.
09/963,349
Filed
2001-09-25
Granted
2003-10-14
Kind
B2