Patents by Inventor Bror Olof Hager

Bror Olof Hager 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).

  • Preservative for wood and other fibrous materials
    Patent number: 4061500
    Abstract: A wood preservative effective against blue stain containing a fatty acid of 6-11 carbon atoms, boric acid and an alkali compound in stoichiometric excess of the fatty acid. The resulting composition is readily soluble in water, and the resulting solution can be applied by spraying onto the wood or be used as a bath into which wood is dipped.
    Type: Grant
    Filed: July 7, 1976
    Date of Patent: December 6, 1977
    Inventor: Bror Olof Hager
  • Preservative for wood
    Patent number: 4001400
    Abstract: The wood preservative of the present invention comprises an aqueous ammoniacal solution of a fatty acid salt of at least one metal of the group consisting of Cu, Zn, Ni, Cd and Co. The fatty acid contains 6-12 carbon atoms per molecule, and preferably caprylic acid.
    Type: Grant
    Filed: January 17, 1972
    Date of Patent: January 4, 1977
    Assignee: Hager Aktiebolag
    Inventor: Bror Olof Hager
  • Process for treatment of wood
    Patent number: 3995077
    Abstract: Wood is impregnated with a solution of a preservative in a vaporizable, water-free, organic solvent and thereafter treated with a warm high-boiling oil composition under subatmospheric pressure conditions effecting evaporation of the solvent used in the impregnation step.
    Type: Grant
    Filed: July 24, 1975
    Date of Patent: November 30, 1976
    Assignee: Hager Aktiebolag
    Inventor: Bror Olof Hager