Patents by Inventor Zenon Prusas

Zenon Prusas 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).

  • Primary paper sheet having a surface layer of pulp fines
    Patent number: 4888092
    Abstract: A paper sheet comprising a primary sheet having a layer of pulp fines on a surface thereof. The disclosed paper sheet has improved smoothness and hold out, and is particularly useful in carbonless record sheets and as a basesheet for high quality coated papers.
    Type: Grant
    Filed: September 22, 1987
    Date of Patent: December 19, 1989
    Assignee: The Mead Corporation
    Inventors: Zenon Prusas, L. Oscar Uhrig, Gene W. Wisecup