Patents by Inventor Nancy L. Boardway

Nancy L. Boardway 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).

  • Method for the production of (-)-4-difluoromethyl-ornithine
    Patent number: 5217886
    Abstract: The present invention is directed to a process for producing (-) 2-substituted-ornithines comprising contacting a 2-substituted-piperidone with L-.alpha.-E-aminocaprolactam-hydrolas in the presence of a divalent cation.
    Type: Grant
    Filed: June 27, 1991
    Date of Patent: June 8, 1993
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Andrew T. Au, Nancy L. Boardway
  • Quaternary ammonium phenates containing a (3-chloro-2-propenyl) group
    Patent number: 4098821
    Abstract: Quaternary ammonium phenates containing a 3-chloro-2-propenyl substituent group attached to the nitrogen atom and having as other substitutent groups attached to the nitrogen atoms (1) a C.sub.8 -C.sub.18 alkyl group, (2) a one carbon, two carbon, C.sub.8 -C.sub.18 alkyl or a 3-chloro-2-propenyl group, (3) a one carbon or two carbon alkyl or a 3-chloro-2-propenyl group, and (4) a phenate group, wherein not more than a total of two 3-chloro-2-propenyl groups are present in the molecule. The compounds have antibacterial and antifungal utility.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: July 4, 1978
    Assignee: The Dow Chemical Company
    Inventors: Thomas P. Brady, Nancy L. Boardway, Joseph W. Whalen