Granted Patent
Utility
US 6,043,387 · App. 09/243,859
Chiral bisphosphines
Inventors:
Philip Pye, Ralph P. Volante, Kai Rossen
Patented Case
View Patent ↗
Granted: Mar 28, 2000
Filed: Feb 3, 1999
Inventors
Philip Pye
Ralph P. Volante
Kai Rossen
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.