Patents by Inventor Gilbert Guiroy

Gilbert Guiroy 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).

  • Cellulosic materials capable of absorbing water of aqueous solutions, and their production
    Patent number: 4035147
    Abstract: Cellulosic materials having a high capacity for absorption of water or aqus solutions, a large volume:weight ratio and a high resilience are produced by an acid-catalyzed cross-linking reaction in a reaction medium of low water content from a cellulosic or lignocellulosic material in the form of individual, substantially dehydrated, non-swollen and inter-fibre-bonds free fibres.
    Type: Grant
    Filed: April 2, 1974
    Date of Patent: July 12, 1977
    Assignee: Centre Technique de l'Industrie des Papiers, Cartons et Celluloses
    Inventors: Solange Sangenis, Gilbert Guiroy, Jean Quere