Patents by Inventor Peter R. Chadwick

Peter R. Chadwick 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).

  • Pesticidal compositions
    Patent number: 5229122
    Abstract: A microencapsulated pesticide formulation comprises non-encapsulated pesticide as well as encapsulated pesticide. The two pesticides may be the same or different, and typically a formulation of 25% permethrin has 20% permethrin inside the capsules and 5% outside.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: July 20, 1993
    Assignee: Burroughs Wellcome Co.
    Inventors: Peter R. Chadwick, David A. Jeffries