Patents by Inventor David F. MacInnes, Jr.

David F. MacInnes, Jr. 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: 5186860
    Abstract: The compound ortho-methoxyaniline (o-anisidine) can be polymerized by both chemical and electrochemical means to produce polyanisidine, a soluble polymer of high electrical conductivity. Also called poly-o-methoxyaniline or PANIS, polyanisidine can be further blended with various other polymers enabling construction of devices with desirable electrical, optical and physical properties. Oxidative polymerization yields have been increased to 47 percent with no apparent loss in electrical conductivity. PANIS has been blended with polystyrene, polyacrylonitrile, polyethylene oxide and poly(trimethyl hexamethylene terephthalamide) (nylon) to form free-standing, stable, flexible films and fibers having electrical resistance values dependent upon the concentration of PANIS.
    Type: Grant
    Filed: October 11, 1990
    Date of Patent: February 16, 1993
    Assignee: AMP Incorporated
    Inventors: James L. Joyce, Jr., Warren C. Jones, David F. MacInnes, Jr.
  • Patent number: 5182050
    Abstract: This invention is directed to an electrically conductive gel comprising an extrinsically conductive gel having dispersed therein a quantity of an intrinsically conductive polymer, where said polymer is present in the amount of between about 0.03 to 1.6%, by weight. Preferred conductive polymers are those selected from the class of polypyrrole, polyaniline, polyanisidine, polythiophene, and derivatives of these base polymers.
    Type: Grant
    Filed: October 24, 1991
    Date of Patent: January 26, 1993
    Assignee: AMP Incorporated
    Inventors: James L. Joyce, Jr., Warren C. Jones, John R. Rowlette, Sr., David F. MacInnes, Jr., Navin N. Vyas