Patents by Inventor Kees N. Nieuwland

Kees N. Nieuwland 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).

  • Perfume compositions containing dialkyl delta-lactones
    Patent number: 4288350
    Abstract: Certain dialkyl delta-lactones are disclosed to be useful as perfumery ingredients.
    Type: Grant
    Filed: March 26, 1980
    Date of Patent: September 8, 1981
    Assignee: Polak's Frutal Works B.V.
    Inventors: Kees N. Nieuwland, Dirk K. Kettenes