Patents by Inventor Bjorn F. Hrutfiord

Bjorn F. Hrutfiord 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).

  • Oxidation of acetovantillone to vanillin
    Patent number: 4691061
    Abstract: Vanillin is produced from alkaline oxidation treatment of acetovanillone or acetovanillone-rich internal waste streams of lignin processes without the need for utilizing nitrobenzene as an oxidizing agent.
    Type: Grant
    Filed: September 10, 1986
    Date of Patent: September 1, 1987
    Assignee: Monsanto Company
    Inventors: Bill S. K. Fung, Bjorn F. Hrutfiord