Patents by Inventor Kerstin Meinander

Kerstin Meinander 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).

  • Cellulose carbamate products of lowered carbamate content
    Patent number: 4923979
    Abstract: The carbamate content of cellulose carbamate products is reduced by treating such products with solutions of a base, which solution also contains one or several alkali metal salts, particularly carbonates, sulfates, phosphates, borates and acetates.
    Type: Grant
    Filed: April 5, 1989
    Date of Patent: May 8, 1990
    Assignee: Neste Oy
    Inventors: Vidar Eklund, Jan Fors, Leo Mandell, Kerstin Meinander, Johan-Fredrik Selin, Olli T. Turunen
  • Non-woven fibre product
    Patent number: 4906521
    Abstract: A non-woven fibre product in which the fibre material consists, totally or in part, of fibres which are able to form bonds with natural or artificial fibres of the same or different type, and in which said fibres capable of forming bonds are cellulose carbamate fibres.
    Type: Grant
    Filed: August 11, 1988
    Date of Patent: March 6, 1990
    Assignee: Neste Oy
    Inventors: Olli Turunen, Kerstin Meinander, Johan-Fredrik Selin, Jan Fors, Vidar Eklund, Leo Mandell
  • Method of lowering the carbamate content of cellulose carbamate products using a base/alkali metal salt mixture
    Patent number: 4861874
    Abstract: The carbamate content of cellulose carbamate products is reduced by treating such products with solutions of a base, which solution also contains one or several alkali metal salts, particularly carbonates, sulfates, phosphates, borates and acetates.
    Type: Grant
    Filed: April 7, 1988
    Date of Patent: August 29, 1989
    Assignee: Neste Oy
    Inventors: Vidar Eklund, Jan Fors, Leo Mandell, Kerstin Meinander, Johan-Fredrik Selin, Olli T. Turunen