Patents by Inventor William L. Dehany

William L. Dehany 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).

  • Method for the preparation of 4-methylsulfonyl benzoic acid derivatives and intermediates
    Patent number: 5079381
    Abstract: This invention relates to an improved process for preparing an herbicidal intermediate compound having the structural formula: ##STR1## wherein groups X are independently selected from alkyl, haloalkyl, CN, halo, alkoxy, nitro, or S(O).sub.m R.sup.2 where R.sup.2 is alkyl and m is 0, 1 or 2, n is 0 or an integer of from 1 to 4 and R.sup.5 is hydrogen or C.sub.1-6 alkyl and intermediate compounds.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: January 7, 1992
    Assignee: Imperial Chemical Industries PLC
    Inventors: Julian A. Gregory, William L. Dehany