Patents by Inventor Axel Bengt Wennerblom

Axel Bengt Wennerblom 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 preparation of lignin resin
    Patent number: 3940352
    Abstract: The present invention relates to a new process for preparation of lignin resin, i.e., thermosetting resin based on lignin, particularly from sulfite waste liquor, which resin for example can be used as a binder in particle board.
    Type: Grant
    Filed: February 21, 1974
    Date of Patent: February 24, 1976
    Assignee: AB Casco
    Inventors: Axel Bengt Wennerblom, Alf Hugo Karlsson