Patents by Inventor Robert F. W. Schroder

Robert F. W. Schroder 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).

  • Composition and method for the control of diabroticite insects
    Patent number: 6090398
    Abstract: Diabroticite insects, in particular the corn rootworm, are major pests of corn as well as a variety of other agricultural crops. The invention describes an aqueous composition which is effective as an insecticide for the control of Diabroticite insects and contains a photoactive xanthene dye, such as phloxine B, as a toxicant and a cucurbitacin-containing feeding stimulant. Additives such as a starch thickener and an adherent may also be included in the composition.
    Type: Grant
    Filed: July 15, 1999
    Date of Patent: July 18, 2000
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Robert F. W. Schroder, Albert B. Demilo, Chang Joo Lee
  • Composition and method for the control of diabroticite insects
    Patent number: 5968541
    Abstract: Diabroticite insects, in particular the corn rootworm, are major pests of corn as well as a variety of other agricultural crops. The invention describes an aqueous composition which is effective as an insectide for the control of Diabroticite insects and contains a photoactive xanthene dye, such as phloxine B, as a toxicant and a cucurbitacin-containing feeding stimulant. Additives such as a starch thickener and an adherent may also be included in the composition.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: October 19, 1999
    Assignee: The United States of America, as represented by the Secretary of Agriculture
    Inventors: Robert F. W. Schroder, Albert B. Demilo, Chang Joo Lee