Patents by Inventor Mandy E. Coombs

Mandy E. Coombs 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).

  • Thiazinone derivatives
    Patent number: 4839356
    Abstract: The invention provides thiazinone derivatives of general formula I: ##STR1## wherein X is O, S or NH, and R represents an optionally substituted alkyl, alkenyl, heterocyclic or aryl group; a process for the preparation of such compounds; compositions containing them and their use as fungicides.
    Type: Grant
    Filed: May 13, 1987
    Date of Patent: June 13, 1989
    Assignee: Shell Internationale Research Maatschappij B.V.
    Inventor: Mandy E. Coombs
  • Benzothiazinone derivatives
    Patent number: 4833137
    Abstract: The invention provides benzothiazinone derivatives of formula ##STR1## wherein R.sub.1 represents a nitrogen-containing heteroaromatic group or a phenyl group substituted by 1 or 2 substituents selected from halogen atoms, alkyl, haloalkyl and alkoxy groups; a process for the preparation of such compounds; compositions containing them and a method of combating plant pathogenic fungi using such compositions or compounds.
    Type: Grant
    Filed: May 13, 1987
    Date of Patent: May 23, 1989
    Assignee: Shell Internationale Research Maatschappij B.V.
    Inventors: Terence Gilkerson, David C. Jennens, Mandy E. Coombs