Patents by Inventor C. Nilsson

C. Nilsson 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).

  • Process for the inhibition of the formation of deposits in cellulose pulping and cellulose pulp treating processes
    Patent number: 4466861
    Abstract: A process is provided for inhibiting the formation of deposits in the course of pulping lignocellulosic material and in the treating of cellulose pulp, by addition to the cellulose pulping or treating process of compounds of polyvalent metals other than aluminum and manganese capable of complexing deposit-forming anions, thereby maintaining the deposit-forming anions in solution in the form of a liquor-soluble complex.
    Type: Grant
    Filed: October 14, 1981
    Date of Patent: August 21, 1984
    Assignee: Mo och Domsjo Aktiebolag
    Inventors: Bengt G. Hultman, Rolf C. Nilsson
  • Process for the inhibition of the formation of deposits in cellulose pulping and cellulose pulp treating processes
    Patent number: 4218284
    Abstract: A process is provided for inhibiting the formation of deposits in the course of pulping lignocellulosic material and in the treating of cellulose pulp, by addition to the cellulose pulping or treating process of compounds of polyvalent metals capable of complexing deposit-forming anions, thereby maintaining the deposit-forming anions in the form of a liquor-soluble complex.
    Type: Grant
    Filed: May 3, 1978
    Date of Patent: August 19, 1980
    Assignee: Mo och Domsjo Aktiebolag
    Inventors: Bengt G. Hultman, Rolf C. Nilsson