Patents by Inventor Alistair Y. Smith

Alistair Y. Smith 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).

  • Tricylic ketone and use of same as flavoring ingredient
    Patent number: 4756764
    Abstract: 3,10-Diacetyl-11-isopropylidene-7,7-dimethyl-tricyclo[6.2.1.0.sup.2,6 ]undeca-2,5,9-triene is a flavoring ingredient useful for the aromatization of smoking articles. It develops upon smoking green, slightly floral, metallic, astringent, fatty, slightly bitter and earthy notes.It is prepared by a two-step process from 1-(4-isopropylidene-1-cyclopent-1-enyl)-1-ethanone.
    Type: Grant
    Filed: February 26, 1987
    Date of Patent: July 12, 1988
    Assignee: Firmenich SA
    Inventors: Alan F. Thomas, Alistair Y. Smith
  • Flavoring with mixtures of ionones
    Patent number: 4247572
    Abstract: The invention relates to the utilization of a mixture of .alpha.-dihydroionone, a compound of formula ##STR1## in combination with .alpha.- and .beta.-ionone as flavouring agent in foodstuffs and beverages in general. Typically, the said compound enables the reconstitution of fruity type flavours, namely of raspberry character.
    Type: Grant
    Filed: June 8, 1979
    Date of Patent: January 27, 1981
    Assignee: Firmenich SA
    Inventors: Wilhelm Pickenhagen, Alistair Y. Smith
  • Process for preparing a diketo-piperazine
    Patent number: 4088649
    Abstract: A cheese flavor is improved or enhanced by the addition to food-products of a diketo-piperazine, defined as cyclo-(Asn--Phe); the typical "mouth-feel" character is thus developed.A new process for the preparation of the said ingredient is also disclosed.
    Type: Grant
    Filed: April 5, 1977
    Date of Patent: May 9, 1978
    Assignee: Firmenich S.A.
    Inventors: Alistair Y. Smith, Paul Dietrich, Wilhelm Pickenhagen
  • Enhancing cheese flavor in foods with a diketo-piperazine
    Patent number: 4038429
    Abstract: A cheese flavor is improved or enhanced by the addition to food-products of a diketo-piperazine, defined as cyclo-(asparagyl-phenylalanyl); the typical "mouth-feel" character is thus developed.A new process for the preparation of the said ingredient is also disclosed.
    Type: Grant
    Filed: June 28, 1976
    Date of Patent: July 26, 1977
    Assignee: Firmenich S.A.
    Inventors: Alistair Y. Smith, Paul Dietrich, Wilhelm Pickenhagen