Patents by Inventor Eileen H. Burns

Eileen H. Burns 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 of recovering fibres
    Patent number: 4264412
    Abstract: Fibre recovery process for pressure-sensitive carbonless copying paper which comprises defibrating the wastage in aqueous media, preferably in the presence of a cationic quaternary ammonium surface active agent, treating the wastage with acid to destroy the microcapsules, and bleaching the defibrated wastage with a bleaching agent.
    Type: Grant
    Filed: May 22, 1979
    Date of Patent: April 28, 1981
    Assignee: The Wiggins Teape Group Limited
    Inventors: David J. Hasler, Peter Sinclair, Eileen H. Burns