Patents by Inventor Ian A. Watkinson

Ian A. Watkinson 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).

  • Nematicidal tetrachloroethyl phosphorothioate
    Patent number: 4753931
    Abstract: A method for controlling nematodes at a locus which comprises applying to the nematodes or the locus a nematicidally-effective amount of O,O-diethyl O-(1,2,2,2-tetrachloroethyl)phosphorothioate.
    Type: Grant
    Filed: July 14, 1986
    Date of Patent: June 28, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Ian A. Watkinson