Patents by Inventor Kevin R. Lawson

Kevin R. Lawson 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).

  • Fungicides
    Patent number: 5334722
    Abstract: Fungicidal compounds of formula (I): ##STR1## in which X and Y are independently O or S, and A and R.sup.1 to R.sup.4 have various specified values.
    Type: Grant
    Filed: April 7, 1992
    Date of Patent: August 2, 1994
    Assignee: Imperial Chemical Industries PLC
    Inventors: Patrick J. Crowley, Alasdair T. Glen, Rosamund A. Spence, Kevin R. Lawson
  • Pyrimidine compounds
    Patent number: 5090992
    Abstract: Pyrimidine compounds useful as plant growth regulators have the formula (I): ##STR1## wherein Y is an optionally substituted secondary or tertiary alkyl group containing from 3 to 7 carbon atoms or an optionally substituted cycloalkyl or alkylcycloalkyl group containing from 3 to 7 carbon atoms; R.sup.1 and R.sup.2, are hydrogen or a lower alkyl group; A is an optionally substituted phenyl group; n is an integer which may be 1 or 2; and R.sup.3 is hydrogen, an alkyl group containing from 1 to 4 carbon atoms, or an alkenyl or alkynyl group containing from 2 to 4 carbon atoms.
    Type: Grant
    Filed: February 16, 1990
    Date of Patent: February 25, 1992
    Assignee: Imperial Chemical Industries PLC
    Inventor: Kevin R. Lawson
  • Pyrimidine derivatives
    Patent number: 5026418
    Abstract: Pyrimidine compounds useful as plant growth regulators have the formula (I): ##STR1## wherein Y is an optionally substituted secondary or tertiary alkyl group containing from 3 to 7 carbon atoms or an optionally substituted cycloalkyl or alkylcycloalkyl group containing from 3 to 7 carbon atoms; R.sup.1 and R.sup.2, which may be the same or different, are hydrogen or a lower alkyl group; A is an optionally substituted heterocyclic group, for example thienyl or pyridyl; n is an integer which may be from 0 to 2 and is preferably 0; and R.sup.3 is hydrogen, an alkyl group containing from 1 to 4 carbon atoms, or an alkenyl or alkynyl group containing from 2 to 4 carbon atoms.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: June 25, 1991
    Assignee: Imperial Chemical Industries PLC
    Inventor: Kevin R. Lawson
  • Chloro-substituted ketone imidazole derivatives
    Patent number: 4761483
    Abstract: The present invention relates to a class of novel chloro-substituted ketone imidazole derivatives. The invention further relates to pharmaceutical compositions containing such compounds and to the use of such compounds and compositions as anti-anaerobic agents.
    Type: Grant
    Filed: June 26, 1985
    Date of Patent: August 2, 1988
    Assignee: G. D. Searle & Co.
    Inventors: Kevin R. Lawson, Roger M. Upton
  • Substituted pyrimidoquinoxalines useful as anti-anaerobic agents
    Patent number: 4758565
    Abstract: This disclosure relates to a novel class of substituted quinoxaline derivatives. The disclosure further relates to pharmaceutical compositions containing such compounds and to the use of such compounds and compositions as anti-anaerobic agents.
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: July 19, 1988
    Assignee: G. D. Searle & Co.
    Inventors: George J. Ellames, Kevin R. Lawson, Albert A. Jaxa-Chamiec, Roger M. Upton