Patents by Inventor Jennifer L. Keller

Jennifer L. Keller has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Asymmetric hydrogenation of beta- or gamma-ketoesters and beta- or gamma-ketoamides
    Patent number: 5508435
    Abstract: .beta.- or .gamma.-Ketoesters and .beta.- or .gamma.-ketoamides are asymmetrically reduced with a Ru(II)-BINAP derived catalyst at about 40.degree. C. and about 50N/mm.sup.2 of hydrogen in the presence of a strong acid.
    Type: Grant
    Filed: January 5, 1994
    Date of Patent: April 16, 1996
    Assignee: Merck & Co., Inc.
    Inventors: Joseph D. Armstrong, III, Lisa DiMichele, Alan W. Douglas, Jennifer L. Keller, Steven A. King, Andrew S. Thompson, Thomas R. Verhoeven