Patents by Inventor Tomas Lund

Tomas Lund 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).

  • Modificaton of starch
    Patent number: 5808053
    Abstract: The invention generally relates to a process for modification of cationic starch at which the cationic starch is treated, in the presence of water, with an aluminium compound. The modified cationic starch is useful as a retention agent. The invention also relates to a method for improving retention and/or dewatering in papermaking at which cationic starch is modified by the process.
    Type: Grant
    Filed: January 17, 1997
    Date of Patent: September 15, 1998
    Assignee: Eka Chemicals AB
    Inventors: Hans Johansson, Tomas Lund, Ake Larsson