Patents by Inventor Kenneth H. Clifford

Kenneth H. Clifford 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).

  • Process for the preparation of difluorobenzamide
    Patent number: 5206158
    Abstract: The invention provides a process for the preparation of 2,6-difluorobenzamide which comprises subjecting 2,6-difluorobenzonitrile to the action of a suitable hydrolysing microorganism or nitrilase extract therefrom; and Rhodococcus Sp. NCIB 12218 or a mutant thereof, suitable for use in the process.
    Type: Grant
    Filed: August 21, 1990
    Date of Patent: April 27, 1993
    Assignees: Gist-Brocades N.V., Shell Internationale Research Maatschappij B.V.
    Inventors: Kenneth H. Clifford, Philip J. Geary, Robert J. Pryce
  • Certain phenoxy (or 5-trifluoromethyl-pyridyl-oxy)-phenoxy-2-yl-propane derivatives
    Patent number: 5110943
    Abstract: The R-enantiomer of a compound of formula I: ##STR1## where Z is an optionally substituted cyclic organic moiety and C* represents an optically active carbon atom, may be prepared by supplying a substrate of formula II ##STR2## to a culture of a microorganism capable of oxidation of compound II into the R-enantiomer of I.
    Type: Grant
    Filed: May 24, 1991
    Date of Patent: May 5, 1992
    Assignee: Shell Internationale Research Maatschappij B.V.
    Inventors: Kenneth H. Clifford, Gareth T. Phillips, Arthur F. Marx
  • Process for the preparation of substituted phenoxy propanoic acids
    Patent number: 5037759
    Abstract: The R-enantiomer of a compound of formula I: ##STR1## where Z is an optionally substituted cyclic organic moiety and C* represents an optically active carbon atom, may be prepared by supplying a substrate of formula II ##STR2## to a culture of a microorganism capable of oxidation of compound II into the R-enantiomer of I.
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: August 6, 1991
    Assignees: Shell Internationale Research Maatschappij B.V., Gist-Brocades NV
    Inventors: Kenneth H. Clifford, Gareth T. Phillips, Arthur F. Marx