Patents by Inventor Barry F. Nelsen

Barry F. Nelsen 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).

  • Liquid colored toner compositions
    Patent number: 5330872
    Abstract: A liquid toner composition comprising:A. a colored predispersion comprising a homogeneous mixture of at least one selected nonpolymeric resin material, at least one selected polymeric plasticizer, at least one selected colorant material, and at least one selected maleic anhydride adduct of polyolefin;B. an aliphatic hydrocarbon carrier liquid having a conductivity of 10.sup.-9 MHOS/cm or less, a dielectric constant of 3 or less, and a flash point of 100.degree. F. or greater; andC. external charge system comprising an interacting mixture of a maleic anhydride adduct of polyolefin and an amiphipathic copolymer.
    Type: Grant
    Filed: April 5, 1993
    Date of Patent: July 19, 1994
    Assignee: Olin Corporation
    Inventors: Peter E. Materazzi, Barry F. Nelsen
  • Process for preparing a nonconductive substrate for electroplating
    Patent number: 5139642
    Abstract: Described herein is an improved process for electroplating a conductive metal layer to the surface of a nonconductive material comprising pretreating the material with a carbon black dispersion followed by a graphite dispersion before the electroplating step.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: August 18, 1992
    Assignee: Olin Corporation
    Inventors: Catherine M. Randolph, Barry F. Nelsen
  • Liquid dispersion for enhancing the electroplating of a non-conductive surface
    Patent number: 5106537
    Abstract: Described herein is an improved process for electroplating a conductive metal layer to the surface of a nonconductive material comprising the following steps:(a) preparing a liquid dispersion of carbon black comprised of:(1) carbon black particles having an average particle diameter of less than about 3.
    Type: Grant
    Filed: July 23, 1990
    Date of Patent: April 21, 1992
    Assignee: Olin Hunt Sub III Corp.
    Inventors: Barry F. Nelsen, Jieh-Hwa Shyu
  • Process for preparing a nonconductive substrate for electroplating
    Patent number: 4964959
    Abstract: Described herein is an improved process for electroplating a conductive metal layer to the surface of a nonconductive material comprising the following steps:(a) preparing a liquid dispersion of carbon black comprised of:(1) carbon black particles having an average particle diameter of less than about 3.
    Type: Grant
    Filed: April 12, 1990
    Date of Patent: October 23, 1990
    Assignee: Olin Hunt Specialty Products Inc.
    Inventors: Barry F. Nelsen, Jieh-Hwa Shyu
  • Process for preparing a nonconductive substrate for electroplating
    Patent number: RE37765
    Abstract: Described herein is an improved process for electroplating a conductive metal layer to the surface of a nonconductive material comprising pretreating the material with a carbon black dispersion followed by a graphite dispersion before the electroplating step.
    Type: Grant
    Filed: February 22, 1999
    Date of Patent: June 25, 2002
    Assignee: MacDermid, Incorporated
    Inventors: Catherine M. Randolph, Barry F. Nelsen