Patents by Inventor Cornelius Nussbaumer

Cornelius Nussbaumer 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).

  • Acetyl-tri-and-tetramethyl-octahydronaphthalenes and fragrance compositions containing same
    Patent number: 5214160
    Abstract: The invention concerns novel odorants of formula I wherein R is hydrogen or methyl. ##STR1## The invention also concerns fragrance compositions containing I. Formula I is intended to particularly embrace as the racemates, (.+-.)-3.alpha.-acetyl-3.beta.,4.beta.,5,5-tetramethyl-2,3,4,4a.beta.,5,6, 7,8-octahydronapthalene and (.+-.)-3.alpha.-acetyl-4.beta.,5,5,-trimethyl-2,3.beta.,4,4a.beta.,5,6,7,8 -octahydronapthalene.
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: May 25, 1993
    Assignee: Givaudan Corporation
    Inventors: Franz Etzweiler, Daniel Helmlinger, Cornelius Nussbaumer, Mario Pesaro
  • Acetyl-tri-and-tetramethyl-octahydronaphthalenes and fragrance compositions containing same
    Patent number: 5180709
    Abstract: The invention concerns novel odorants of formula I wherein R is hydrogen or methyl. ##STR1## The invention also concerns fragrance compositions containing I. Formula I is intended to particularly embrace as the racemates, (.+-.)-3.alpha.-acetyl-3.beta.,4.beta.,5,5-tetramethyl-2,3,4,4a.beta.,5,6, 7,8-octahydronapthalene and (.+-.)-3.alpha.-acetyl-4.beta.,5,5-trimethyl-2,3.beta.,4,4a.beta.,5,6,7,8- octahydronapthalene.
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: January 19, 1993
    Assignee: Givaudan-Roure Corporation
    Inventors: Franz Etzweiler, Daniel Helmlinger, Cornelius Nussbaumer, Mario Pesaro