Patents by Inventor Jouko Huttenen

Jouko Huttenen 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).

  • Cyclic process for producing an alkali solution of cellulose carbamate and precipitating the carbamate
    Patent number: 4639514
    Abstract: The present invention concerns a cyclic process for producing an alkali solution of cellulose carbamate, for precipitating the cellulose carbamate from the alkali solution and for recovering and recycling the chemicals.
    Type: Grant
    Filed: September 24, 1985
    Date of Patent: January 27, 1987
    Assignee: Neste Oy
    Inventors: Olli T. Turunen, Jouko Huttenen, Johan-Fredrik Selin, Jan Fors, Vidar Eklund