Patents by Inventor Chester Blair DeSavigny

Chester Blair DeSavigny 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).

  • Microencapsulated vulcanizing agents
    Patent number: 4102800
    Abstract: Alkylated phenol sulfide contained within microcapsules, in which the capsule wall is crosslinked polyamide, polyurea, or polyamide-polyurea resin, is a better-handling, more efficient vulcanizing agent for rubber.
    Type: Grant
    Filed: October 1, 1973
    Date of Patent: July 25, 1978
    Assignee: Pennwalt Corporation
    Inventors: Ivan Christoff Popoff, Chester Blair DeSavigny
  • Microencapsulated methyl and ethyl parathion insecticide in aqueous carrier
    Patent number: 3959464
    Abstract: Microcapsules of methyl parathion or ethyl parathion contained within a wall of cross-linked polyamide-polyurea are improved insecticidal compositions having more effective and extended toxicity to insects and decreased toxicity to mammals. The compositions are stable in aqueous carriers.
    Type: Grant
    Filed: June 3, 1971
    Date of Patent: May 25, 1976
    Assignee: Pennwalt Corporation
    Inventor: Chester Blair DeSavigny