Patents by Inventor Arnold Koff

Arnold Koff 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).

  • Stable emulsions and improved temperature monitoring films prepared therefrom
    Patent number: 4045383
    Abstract: Improved temperature monitoring films formed from stable emulsions containing compounds capable of existing in the cholesteric liquid crystalline phase which are protected and stabilized against aging, and the atmosphere by the inclusion of an antioxidant are provided. The thus-formed film materials are used in thermography and/or thermometry.
    Type: Grant
    Filed: January 21, 1976
    Date of Patent: August 30, 1977
    Assignee: Hoffmann-La Roche Inc.
    Inventor: Arnold Koff
  • Water dispersible carotenoid preparations and processes thereof
    Patent number: 3998753
    Abstract: This invention relates to water dispersible carotenoid compositions in liquid or powder form which are suitable for use in the preparation of colored optically clear, stable, aqueous compositions and which can be incorporated into, e.g., pharmaceutical or cosmetic preparations or animal feedstuff and to processes for their preparation.
    Type: Grant
    Filed: August 13, 1974
    Date of Patent: December 21, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Thomas William Antoshkiw, Marco Alfred Cannalonga, Arnold Koff