Patents by Inventor Richard C. Wirnowski

Richard C. Wirnowski 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: 4488158
    Abstract: An electrosensitive recording member comprising, in combination, (1) a base support; (2) a conductive polyester layer disposed on the base support; and (3) a contrasting surface recording layer with respect to said polyester layer and combustible at the temperature developed during passage of marking current through said medium to selectively reveal the underlying contrasting polyester layer. The polyester layer is stable and not subject to depolymerization when subjected to the marking temperatures of an electronic recording member, e.g., stylus.
    Type: Grant
    Filed: November 2, 1983
    Date of Patent: December 11, 1984
    Assignee: Exxon Research & Engineering Co.
    Inventor: Richard C. Wirnowski
  • Patent number: 4403224
    Abstract: In an electrosensitive recording member having a surface recording layer wherein the surface recording layer comprises a resin binder, a pigment dispersed through said binder and an effective amount of at least one particulate smudge inhibitor to inhibit the formation of smudge produced by the action of an electronic recording means on the surface of the recording member. The smudge inhibitor is a divalent metal palmitate or stearate, or N,N'-ethylene-bis stearamide, or mixtures thereof. The particulate smudge inhibitor is either incorporated into and dispersed throughout the surface recording layer or applied to the surface recording layer as a separate coating thereon.
    Type: Grant
    Filed: January 22, 1982
    Date of Patent: September 6, 1983
    Assignee: Exxon Research and Engineering Co.
    Inventor: Richard C. Wirnowski