Patents by Inventor Gary J. Calton

Gary J. Calton 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).

  • Dialkoxy monorden derivatives
    Patent number: 4228079
    Abstract: Disclosed herein are novel dialkoxy derivatives of monorden corresponding to the structural formula: ##STR1## wherein R is an alkyl group having from 2 to 8 carbon atoms, the two R groups being the same or different. The novel compounds of the invention are useful as nematocides.
    Type: Grant
    Filed: October 30, 1978
    Date of Patent: October 14, 1980
    Assignee: W. R. Grace & Co.
    Inventor: Gary J. Calton
  • Production of monorden
    Patent number: 4166764
    Abstract: Process for the production of monorden through cultivation of Diheterospora chlamydosporia. Cultivation takes place in a nutrient medium and the monorden is isolated by adsorption or extraction.
    Type: Grant
    Filed: February 1, 1978
    Date of Patent: September 4, 1979
    Assignee: W. R. Grace & Co.
    Inventors: Gary J. Calton, Marlin A. Espenshade
  • Antineoplastic agent
    Patent number: 4147798
    Abstract: Disclosed herein is a method of culturing Aspergillus terreus strain NRRL 11156 to produce an antineoplastic compound designated as quadrone and having the following structure: ##STR1##
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: April 3, 1979
    Assignee: W. R. Grace & Co.
    Inventors: Gary J. Calton, Marlin A. Espenshade, Richard L. Ranieri