Patents by Inventor Kelvan Ray Luff

Kelvan Ray Luff 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).

  • Herbicidal mixtures
    Patent number: 6239070
    Abstract: The invention relates to a method of reducing phytotoxicity in crop plants caused by at least one member of the group consisting of a 4-benzoylisoxazole herbicide and a 2-cyano-1,3-dione herbicide which comprises applying to the locus of the crop plant, the crop or crop plant seed an antidotally effective amount of at least one sulfonylurea herbicide.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: May 29, 2001
    Assignee: Rhone-Poulenc Inc.
    Inventor: Kelvan Ray Luff