Patents by Inventor Brock Lundberg

Brock Lundberg 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 fiber-based compositions and their method of manufacture
    Patent number: 6506435
    Abstract: An improved method for refining cellulose that produces a highly refined cellulosic material comprising soaking raw material in a mild NaOH using reduced temperatures and pressures, and refining the material with a plate refiner so that a waste water stream is reduced in volume and has a pH within a range of 8 to 9. Also, a HRC gel having a lignin concentration of at least about one (1)% by weight, and a water retention capacity of about 25 to at least about 56 g H2O/g dry HRC is provided.
    Type: Grant
    Filed: November 3, 1999
    Date of Patent: January 14, 2003
    Assignees: Regents of the University of Minnesota, Agricultural Utilization Research Institute
    Inventors: Brock Lundberg, Lin Gu, Rongsheng Roger Ruan, Ling Chen, Paul Bradley Addis, Jack Edgar Johnson