Patents by Inventor Claude Bourne

Claude Bourne 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).

  • Process for bleaching a mechanical pulp with hydrogen peroxide
    Patent number: 4756798
    Abstract: Mechanical pulp is bleached by a treatment with hydrogen peroxide wherein prior to or simultaneously with said treatment the mechanical pulp is subject to an oxygen pressure.
    Type: Grant
    Filed: April 16, 1987
    Date of Patent: July 12, 1988
    Inventors: Dominique Lachenal, Claude Bourne, Christian de Choudens