Patents by Inventor Arthur A. Ramsey

Arthur A. Ramsey 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).

  • Phosphonium salts and fungicidal use
    Patent number: 4933328
    Abstract: The invention provides fungicidal compositions containing phosphonium salts of formula: ##STR1## in which n represents 0, 1, 2 or 3, R represents a halogen atom or an optionally substituted alkyl, haloalkyl, alkoxy or haloalkyl group, R.sup.1, R.sup.2 and R.sup.3 independently represent an optionally substituted alkyl, cycloalkyl, phenyl or benzyl group and X represents an anion; certain novel phosphonium salts, a process for the preparation of such compounds and a method of combating plant pathogenic fungi using such compositions or compounds.
    Type: Grant
    Filed: July 18, 1988
    Date of Patent: June 12, 1990
    Assignee: Shell Internationale Research Maatshappij B.V.
    Inventors: Jurgen Curtze, Christo Drandarevski, Guido Albert, Arthur A. Ramsey