Patents by Inventor Anton Pieter Johan van Manen

Anton Pieter Johan van Manen 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).

  • Chemical compounds and perfume composition
    Patent number: 6319889
    Abstract: The invention is directed to novel compounds selected from the class of compounds having the structural formulae wherein the cyclohexane moiety with the dotted circle represents either a cyclohexane ring or a benzene ring, n represents an integer with the value 1, 3, or 4, m represents an integer with the value 1 or 2, R1, R2, R3, R4 and R5, represent hydrogen or a lower alkyl group, and the total carbon number of R1, R2, R3, R4 and R5, combined is eight or less.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: November 20, 2001
    Assignee: PFW Aroma Chemicals B.V.
    Inventors: Willem Lenselink, Anton Pieter Johan van Manen