Patents by Inventor Paul Wacher

Paul Wacher 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).

  • Electrostatic recording media
    Patent number: 5360643
    Abstract: An electrostatic recording media comprising a support having first and second surfaces, a conductive clay layer on the first surface of the support, at least one dielectric layer present on the conductive layer, and a non-clay conductivizing agent incorporated into the support from the second surface is described. The element is used in electrostatic imaging systems to produce images having improved density in relatively low humidities.
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: November 1, 1994
    Assignee: International Paper Company
    Inventor: Paul Wacher
  • Electrostatic recording media
    Patent number: 5240777
    Abstract: An electrostatic recording media comprising a support having first and second surfaces, a conductive clay layer on the first surface of the support, at least one dielectric layer present on the conductive layer, and a non-clay conductivizing agent incorporated into the support from the second surface is described. The element is used in electrostatic imaging systems to produce images having improved density in relatively low humidities.
    Type: Grant
    Filed: February 11, 1992
    Date of Patent: August 31, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Paul Wacher