Patents by Inventor Eric P. Duffey

Eric P. Duffey 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).

  • Patent number: 5396730
    Abstract: A point source insect control device which comprises a frangible container poorly permeable to gases and liquids containing a liquid insecticidal substance capable of translocation; a sheet of absorbent material at least one portion of which at least partially surrounds or is in close proximity with the container, and an enclosure for the container and absorbent sheet which bears multiple perforations or apertures sufficient to allow translocation of the insecticidal substances once the frangible container is ruptured.
    Type: Grant
    Filed: June 23, 1994
    Date of Patent: March 14, 1995
    Assignee: Sandoz Ltd.
    Inventors: Douglas N. VanGundy, Lloyd T. Tate, Eric P. Duffey, Robert C. Pearce, III
  • Patent number: D365392
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: December 19, 1995
    Assignee: Sandoz Ltd.
    Inventors: Douglas N. VanGundy, Lloyd T. Tate, Eric P. Duffey