Patents by Inventor Johannes T. De Heij

Johannes T. De Heij 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).

  • Ethers for aromatizing purposes
    Patent number: 5432154
    Abstract: The invention relates to novel ethers and their use as aroma precursors. The ethers are derived from ionol and related compounds. These aroma precursors do not have a substantial aroma as such under ambient conditions, but will break up into a complex mixture having useful organoleptic properties under heating. The ethers are especially suitable for use in products which are heated, burned or smouldered in some stage of their use. The compounds according to the invention are especially suitable for application to tobacco. Mixtures obtained by degrading (e.g. by heating) the ethers according to the invention may be used in a flavoring or perfuming mixture as well due to their organoleptic properties.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: July 11, 1995
    Assignee: Unilever Patent Holdings B.V.
    Inventors: Johannes T. de Heij, Franciscus P. van Lier, Harrie Renes
  • Ethers for aromatizing purposes
    Patent number: 5313002
    Abstract: The invention relates to novel ethers and their use as aroma precursors. The ethers are derived from ionol and related compounds. These aroma precursors do not have a substantial aroma as such under ambient conditions, but will break up into a complex mixture having useful organoleptic properties under heating. The ethers are especially suitable for use in products which are heated, burned or smouldered in some stage of their use. The compounds according to the invention are especially suitable for application to tobacco. Mixtures obtained by degrading (e.g. by heating) the ethers according to the invention may be used in a flavouring or perfuming mixture as well due to their organoleptic properties.
    Type: Grant
    Filed: November 3, 1992
    Date of Patent: May 17, 1994
    Assignee: Unilever Patent Holdings B.V.
    Inventors: Johannes T. De Heij, Franciscus P. Van Lier, Harrie Renes
  • Diterpenoid alcohols for flavouring purposes
    Patent number: 5296461
    Abstract: The invention relates to products for flavouring purposes. The products according to the invention can be obtained from vegetable material. By applying an extraction step a fractionation product enriched in diterpenols is obtained. Due to their specific flavour and the fact that some heating is preferred for the most beneficial effect makes that the compounds according to the invention are especially useful for flavouring tobacco, tobacco products and tobacco substitutes of any kind.
    Type: Grant
    Filed: November 3, 1992
    Date of Patent: March 22, 1994
    Assignee: Unilever Patent Holdings B.V.
    Inventors: Johannes T. De Heij, Johannes M. Van Dort, Harrie Renes
  • Processing for preparing flavorings and perfumes based on one or more carotenoids as starting material
    Patent number: 5084292
    Abstract: The invention provides a process for preparing flavouring and perfume complexes by converting one or more carotenoids like carotenes, xanthophylls etc. into a reaction product with organoleptic properties in the presence of a liquid solvent or liquid suspension medium containing an oxygen-containing gas at a temperature in the 20.degree.-250.degree. C. range under a pressure of not more than 400 bar. The obtained products--optionally after a complete or partial removal of the solvent or suspension medium--may be used for the direct or indirect perfuming and flavouring respectively of materials.
    Type: Grant
    Filed: May 25, 1990
    Date of Patent: January 28, 1992
    Assignee: Unilever Patent Holdings B.V.
    Inventors: Johannes M. Van Dort, Johannes T. De Heij, Harry Renes