Patents by Inventor Willy De Coster

Willy De Coster 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).

  • Method of manufacturing an artificial paper
    Patent number: 3993718
    Abstract: The present invention relates to a process and a composition for the manufacture of an artificial paper requiring neither calendering nor biorientation, the paper obtained having in addition to the characteristics proper to cellulose paper, improved physical properties, such as better impermeability to water vapor and air, resistance to greases and dimensional stability under various atmospheric conditions.
    Type: Grant
    Filed: January 6, 1975
    Date of Patent: November 23, 1976
    Assignee: U.C.B., Societe Anonyme
    Inventors: Walter Bontinck, Willy De Coster