Patents by Inventor Agneta G. M. Fuhrmann

Agneta G. M. Fuhrmann 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).

  • Procedure for manufacturing lignocellulosic material products
    Patent number: 5110414
    Abstract: A procedure for manufacturing lignocellulosic material products and for improving their strength and water resistance characteristics, high-molar mass lignin derivatives being added to the lignocellulosic material, of which at least 35% by weight are over 5000 in molar mass.
    Type: Grant
    Filed: February 25, 1991
    Date of Patent: May 5, 1992
    Assignee: Oy Keskuslaboratorio - Centrallaboratorium AB
    Inventors: Kaj G. Forss, Agneta G. M. Fuhrmann, Martti Toroi
  • Adhesive for the manufacture of plywood, particle boards, fiber boards and similar products
    Patent number: 4105606
    Abstract: An adhesive for the manufacture of plywood, fiber board, particle board, and similar products, and containing the combination of phenol formaldehyde resin, and a lignin derivative, such as lignosulfonates, or alkali lignins. According to the invention a minimum of 65% by weight of the lignosulfonates and a minimum of 40% by weight of the alkali lignins have relative molecular weights in excess of that of Glucagon.
    Type: Grant
    Filed: July 14, 1977
    Date of Patent: August 8, 1978
    Assignee: Keskuslaboratorio-Centrallaboratorium Ab
    Inventors: Kaj G. Forss, Agneta G. M. Fuhrmann