Patents by Inventor Valdemar Toome

Valdemar Toome 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).

  • Alkanoyloxylation of beta-ionone
    Patent number: 4193850
    Abstract: A method for electrochemically alkanoyloxylation of beta-ionone to alkanoyloxy-beta-ionone, an intermediate for canthaxanthin.
    Type: Grant
    Filed: April 12, 1979
    Date of Patent: March 18, 1980
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Urs Hengartner, Gilbert Reymond, Valdemar Toome