Patents by Inventor Georges Papageorges

Georges Papageorges 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 the delignification and bleaching of chemical and semi-chemical cellulosic pulps
    Patent number: 4459174
    Abstract: A process for the delignification and bleaching of chemical and semi-chemical cellulosic pulps in which the pulp is subjected to a treatment with oxygen and a subsequent treatment with peroxide. The effluent from the treatment with peroxide is at least partially recycled to the treatment with oxygen.
    Type: Grant
    Filed: July 21, 1982
    Date of Patent: July 10, 1984
    Assignee: Interbox (Societe Anonyme)
    Inventors: Georges Papageorges, Pierre Ledoux
  • Process for the regeneration of waste paper
    Patent number: 4390395
    Abstract: The dry waste paper is directly fed in a disintegrator, functioning with a pulp consistency, at the disintegrator outlet, of between 20 and 50%, where it is disintegrated in the presence of an aqueous phase and at least one bleaching agent.
    Type: Grant
    Filed: June 23, 1981
    Date of Patent: June 28, 1983
    Assignee: Interox
    Inventors: Jean De Ceuster, Georges Papageorges