Patents by Inventor Jürgen Nienhaus

Jürgen Nienhaus 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 the preparation of isolongifolanol
    Patent number: 6566562
    Abstract: The invention relates to the preparation of the compounds isolongifolanol (IUPAC name: 2,2,7,7-tetramethyltricyclo[6.2.1.01,6]undecan-6-ol) and isolongifolenol (IUPAC name: 2,2,7,7-tetramethyltricyclo[6.2.1.01,6]undec4-en-6-ol) and to the use thereof as fragrance or aroma substance.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: May 20, 2003
    Assignee: Haarmann & Reimer GmbH
    Inventors: Ingo Wöhrle, Jürgen Nienhaus