Patents by Inventor John Charles Leffingwell

John Charles Leffingwell 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).

  • Publication number: 20080293821
    Abstract: Disclosed are improved cooling compositions comprised of N-(2-hydroxyethyl)-2,3-dimethyl-2-isopropylbutyramide and at least one other cooling agent. The cooling compositions may be used alone or in products such as a chewing gum or a confection.
    Type: Application
    Filed: May 21, 2007
    Publication date: November 27, 2008
    Inventors: Ashok K. Moza, Hong Sun, Stephen Rohde, Diane Leffingwell, John Charles Leffingwell
  • Publication number: 20080038386
    Abstract: The present invention is directed to a sensate composition consisting of a liquid cooling composition, and at least one warming, tingling, or pungent sensate ingredient of either synthetic or natural origin which provides enhanced warming, tingling, or pungent properties. The liquid cooling sensate of the invention is a eutectic mixture of 2-Isopropyl-N,2,3-trimethylbutyramide and N-Ethyl-p-menthane-3-carboxamide, or at least one cooling agent selected from the group consisting of N-(2-hydroxyethyl)-2,3-dimethyl-2-isopropylbutanamide, N-(3-ethoxypropyl)-2,3-dimethyl-2-isopropylbutanamide, N-(3-isopropoxypropyl)-2,3-dimethyl-2-isopropylbutanamide, N-(3-butoxypropyl)-2,3-dimethyl-2-isopropylbutanamide,N-Ethyl-2,2-diisopropylbutanamide, N-(1,1-dimethyl-2-hydroxyethyl)-2,2-diethylbutanamide, N-(2-ethoxyethyl)-2,3-dimethyl-2-isopropylbutanamide and N-(3-methoxypropyl)-2,3-dimethyl-2-isopropylbutanamide.
    Type: Application
    Filed: August 2, 2006
    Publication date: February 14, 2008
    Inventors: Ashok K Moza, Stephen E. Rohde, John Charles Leffingwell, Diane Leffingwell