IP Library › Granted Patent US 5,874,629
Granted Patent Utility
US 5,874,629 · App. 08/866,665

Chiral bisphosphines

Inventors: Philip Pye, Kai Rossen, Ralph P. Volante
Patented Case View Patent ↗
Granted: Feb 23, 1999 Filed: Jun 9, 1997
Inventors
Philip Pye
Kai Rossen
Ralph P. Volante
Assignee (at issue)
MERCK & CO., 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 5,874,629
App. No.
08/866,665
Filed
1997-06-09
Granted
1999-02-23
Kind
A