Patents by Inventor Brian J. Willis

Brian J. Willis 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).

  • Patent number: 4308401
    Abstract: The present invention relates to novel compounds useful as fragrance materials which have the structure ##STR1## wherein the dashed line may be either a carbon-carbon single bond or a carbon-carbon double bond; R.sub.1, R.sub.2 and R.sub.3 are each the same or different and each represents hydrogen or methyl; and X is halogen. The invention also provides methods of preparing these compounds from readily available cyclohexene derivatives and fragrance compositions which include the compounds.
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: December 29, 1981
    Assignee: Fritzsche Dodge & Olcott Inc.
    Inventors: Brian J. Willis, Philip A. Christenson, Robert Mack
  • Patent number: 4304944
    Abstract: Novel bicyclic ketones having the structure: ##STR1## wherein R is a C.sub.1 -C.sub.5 alkyl group, either straight-chain or branched, and saturated analogs have been prepared. These compounds exhibit floral and woody odors and/or desirable flavor properties, and are useful as fragrance and/or flavor materials. The compounds are conveniently prepared from alkylidene cyclopentanones by Michael addition with alkyl metalloacetoacetates and subsequent decarboxylative cyclization of the adducts. The saturated analogs may then be prepared by hydrogenation.
    Type: Grant
    Filed: February 25, 1980
    Date of Patent: December 8, 1981
    Assignee: Fritzsche Dodge & Olcott Inc.
    Inventors: Brian J. Willis, Robert G. Eilerman
  • Patent number: 4289658
    Abstract: The present invention relates to novel compounds useful as fragrance materials which have the structure ##STR1## wherein the dashed line may be either a carbon-carbon single bond or a carbon-carbon double bond. The invention also provides methods of preparing these compounds from the reaction products of cyclopentanone, and 2,2,3-trimethyl-3-cyclopenten-1-acetaldehyde and fragrance compositions which include the compounds.
    Type: Grant
    Filed: September 19, 1979
    Date of Patent: September 15, 1981
    Assignee: Fritzsche Dodge & Olcott Inc.
    Inventors: Brian J. Willis, John M. Yurecko, Jr.
  • Patent number: 4281204
    Abstract: The present invention relates to substituted spirocyclic derivatives having the general formula: ##STR1## wherein the dotted line represents a carbon-carbon double bond or a carbon-carbon single bond, wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 are each the same or different, hydrogen or lower alkyl, wherein Z is one of the following: ##STR2## wherein R.sub.7 is either hydrogen or lower alkyl, wherein R.sub.8 and R.sub.9 are each lower alkyl; their methods of preparation and their use as odor-modifying ingredients in perfumes and perfumed products, and as flavor-modifying ingredients in the flavoring of foodstuffs and tobacco products.
    Type: Grant
    Filed: October 5, 1979
    Date of Patent: July 28, 1981
    Assignee: Fritzsche Dodge & Olcott Inc.
    Inventors: Brian J. Willis, Robert G. Eilerman
  • Patent number: 4276220
    Abstract: Norbornyl-substituted pyrans, their preparation and their use as olfactory components of perfume formulations are disclosed.
    Type: Grant
    Filed: February 22, 1980
    Date of Patent: June 30, 1981
    Assignee: Fritzsche Dodge & Olcott, Inc.
    Inventors: Brian J. Willis, John W. Dittrick
  • Patent number: 4272412
    Abstract: The present invention relates to novel compounds useful as fragrance materials which have the structure ##STR1## wherein the dashed line may be either a carbon-carbon single bond or a carbon-carbon double bond; R.sub.1, R.sub.2 and R.sub.3 are each the same or different and each represents hydrogen or methyl; and X is halogen. The invention also provides methods of preparing these compounds from readily available cyclohexene derivatives and fragrance compositions which include the compounds.
    Type: Grant
    Filed: March 13, 1980
    Date of Patent: June 9, 1981
    Assignee: Fritzsche Dodge & Olcott Inc.
    Inventors: Brian J. Willis, Philip A. Christenson, Robert Mack
  • Patent number: 4271046
    Abstract: Norcamphanyl-substituted pyrans, their preparation and their use as olfactory components of perfume formulations are disclosed.
    Type: Grant
    Filed: September 13, 1979
    Date of Patent: June 2, 1981
    Assignee: Fritzsche Dodge & Olcott, Inc.
    Inventors: Brian J. Willis, John W. Dittrick
  • Patent number: 4267111
    Abstract: This invention concerns processes for preparing .beta.-santalol, .beta.-santalene, dihydro-.beta.-santalol, tetrahydro-.beta.-santalol and related compounds from camphene. The invention further concerns novel compounds useful as intermediates in these processes and as fragrance adjuncts.
    Type: Grant
    Filed: June 7, 1979
    Date of Patent: May 12, 1981
    Assignee: Fritzsche Dodge & Olcott Inc.
    Inventors: Brian J. Willis, Philip A. Christenson, Derek H. R. Barton
  • Patent number: 4261866
    Abstract: This invention concerns processes for preparing compounds having the structure ##STR1## wherein each of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 is the same or different and represents hydrogen or a lower alkyl group and wherein each dashed line represents a carbon-carbon single bond or a carbon-carbon double bond. Those compounds in which all three dashed lines represent carbon-carbon double bonds are prepared by reacting phenols and 2-alkylidene-1,4-disubstituted butanes. Selective reduction of these compounds yields those in which at least one dashed line represents a carbon-carbon single bond. Most of the compounds so prepared are new compounds. All are useful as fragrance materials either directly and/or in compositions and/or have useful fixative properties in fragrance compositions.
    Type: Grant
    Filed: November 2, 1979
    Date of Patent: April 14, 1981
    Assignee: Fritzsche Dodge & Olcott Inc.
    Inventors: Derek H. R. Barton, Brian J. Willis
  • Patent number: 4223167
    Abstract: This invention concerns processes for preparing .beta.-santalol, .beta.-santalene, dihydro-.beta.-santalol, tetrahydro-.beta.-santalol and related compounds from camphene. The invention further concerns novel compounds useful as intermediates in these processes and as fragrance adjuncts.
    Type: Grant
    Filed: February 14, 1978
    Date of Patent: September 16, 1980
    Assignee: Fritzsche Dodge & Olcott Inc.
    Inventors: Brian J. Willis, Philip A. Christenson, Derek H. R. Barton
  • Patent number: 4221679
    Abstract: Norbornyl-substituted pyrans, their preparation and their use as olfactory components of perfume formulations are disclosed.
    Type: Grant
    Filed: July 25, 1979
    Date of Patent: September 9, 1980
    Assignee: Fritzsche Dodge & Olcott, Inc.
    Inventors: Brian J. Willis, John W. Dittrick
  • Patent number: 4206089
    Abstract: Novel bicyclic ketones having the structure: ##STR1## wherein R is a C.sub.1 -C.sub.5 alkyl group, either straight-chain or branched, and saturated analogs have been prepared. These compounds exhibit floral and woody odors and/or desirable flavor properties, and are useful as fragrance and/or flavor materials. The compounds are conveniently prepared from alkylidene cyclopentanones by Michael addition with alkyl metalloacetoacetates and subsequent decarboxylative cyclization of the adducts. The saturated analogs may then be prepared by hydrogenation.
    Type: Grant
    Filed: March 21, 1978
    Date of Patent: June 3, 1980
    Assignee: Fritzsche Dodge & Oloctt Inc.
    Inventors: Brian J. Willis, Robert G. Eilerman
  • Patent number: 4203925
    Abstract: This invention concerns processes for preparing compounds having the structure ##STR1## wherein each of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 is the same or different and represents hydrogen or a lower alkyl group and wherein each dashed line represents a carbon-carbon single bond or a carbon-carbon double bond. Those compounds in which all three dashed lines represent carbon-carbon double bonds are prepared by reacting phenols and 2-alkylidene-1,4-disubstituted butanes. Selective reduction of these compounds yields those in which at least one dashed line represents a carbon-carbon single bond. Most of the compounds so prepared are new compounds. All are useful as fragrance materials either directly and/or in compositions and/or have useful fixative properties in fragrance compositions.
    Type: Grant
    Filed: June 9, 1978
    Date of Patent: May 20, 1980
    Assignee: Fritzsche Dodge & Olcott Inc.
    Inventors: Derek H. R. Barton, Brian J. Willis
  • Patent number: 4200659
    Abstract: The flavor compositions of this invention include certain dialkyl-.alpha.,.beta.-diacyl succinates which significantly enhance the flavor component or components of flavor compositions. For example, butterscotch flavors are materially improved in smoothness and certain fruit flavors are given greater richness and ripeness.
    Type: Grant
    Filed: June 26, 1978
    Date of Patent: April 29, 1980
    Assignee: Fritzsche Dodge & Olcott Inc.
    Inventors: Brian J. Willis, Frank Fischetti, Jr., Robert G. Eilerman
  • Patent number: 4197246
    Abstract: Norcamphanyl-substituted pyrans, their preparation and their use as olfactory components of perfume formulations are disclosed.
    Type: Grant
    Filed: October 12, 1978
    Date of Patent: April 8, 1980
    Assignee: Fritzsche Dodge & Olcott, Inc.
    Inventors: Brian J. Willis, John W. Dittrick
  • Patent number: 4188310
    Abstract: The present invention relates to novel compounds useful as fragrance materials which have the structure ##STR1## wherein the dashed line may be either a carbon-carbon single bond or a carbon-carbon double bond. The invention also provides methods of preparing these compounds from the reaction products of acetoacetic esters and 2,2,3-trimethyl-3-cyclopenten-1-acetaldehyde and fragrance compositions which include the compounds.
    Type: Grant
    Filed: November 2, 1978
    Date of Patent: February 12, 1980
    Assignee: Fritzsche Dodge & Olcott Inc.
    Inventors: Brian J. Willis, John M. Yurecko, Jr.
  • Patent number: 4140134
    Abstract: The flavor compositions of this invention include certain dialkyl-.alpha.,.beta. -diacyl succinates which significantly enhance the flavor component or components of flavor compositions. For example, butterscotch flavors are materially improved in smoothness and certain fruit flavors are given greater richness and ripeness.
    Type: Grant
    Filed: June 22, 1976
    Date of Patent: February 20, 1979
    Assignee: Fritzsche Dodge & Olcott Inc.
    Inventors: Brian J. Willis, Frank Fischetti, Jr., Robert G. Eilerman
  • Patent number: 4109662
    Abstract: The flavor compositions of this invention include alkyl-2,3-dihydro-3(1'-hydroxyalkylidene)-2-oxo-5-alkyl-furan-4-carboxylat es which significantly enhance the flavor component or components of flavor compositions. For example, butterscotch flavors are materially improved in smoothness and certain fruit flavors are given greater richness and ripeness.
    Type: Grant
    Filed: June 22, 1976
    Date of Patent: August 29, 1978
    Assignee: Fritzsche Dodge & Olcott Inc.
    Inventors: Brian J. Willis, Frank Fischetti, Jr., Robert G. Eilerman