Patents by Inventor Robert W. Trenkle

Robert W. Trenkle 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: 6894020
    Abstract: Described are mixtures consisting essentially of oxomacrocyclic compounds containing greater than about 40 weight % ?3-cyclotetradecen-1-one and greater than about 40 weight % cyclotetradecanone and less than about 5 weight %, of ?2-cyclotetradecen-1-one, perfumery uses thereof and chemo-selective catalytic hydrogen process for preparing same by hydrogenating mixtures containing significant concentrations, greater than 15 weight %, of ?2-cyclotetradecen-1-one. The oxocarbocyclic compound-containing mixtures have advantageous musk aroma imparting, augmenting and enhancing perfumery properties causing the mixtures to be useful in perfume compositions, perfumed articles and perfumed polymers, including particles and fibers produced therefrom.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: May 17, 2005
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Braja Dulal Mookherjee, Anubhav P. S. Narula, Michael G. Monteleone, Robert W. Trenkle
  • Publication number: 20040156876
    Abstract: Described are mixtures consisting essentially of oxomacrocyclic compounds containing greater than about 40 weight % &Dgr;3-cyclotetradecen-1-one and greater than about 40 weight % cyclotetradecanone and less than about 5 weight %, of &Dgr;2-cyclo-tetradecen-1-one, perfumery uses thereof and chemo-selective catalytic hydrogen process for preparing same by hydrogenating mixtures containing significant concentrations, greater than 15 weight %, of &Dgr;2-cyclotetradecen-1-one. The oxocarbocyclic compound-containing mixtures have advantageous musk aroma imparting, augmenting and enhancing perfumery properties causing the mixtures to be useful in perfume compositions, perfumed articles and perfumed polymers, including particles and fibers produced therefrom.
    Type: Application
    Filed: January 20, 2004
    Publication date: August 12, 2004
    Inventors: Braja Dulal Mookherjee, Anubhav P. S. Narula, Michael G. Monteleone, Robert W. Trenkle
  • Patent number: 6720303
    Abstract: Described are mixtures consisting essentially of oxomacrocyclic compounds containing greater than about 40 weight % &Dgr;3-cyclotetradecen-1-one and greater than about 40 weight % cyclotetradecanone and less than about 5 weight %, of &Dgr;2-cyclo-tetradecen-1-one, perfumery uses thereof and chemo-selective catalytic hydrogen process for preparing same by hydrogenating mixtures containing significant concentrations, greater than 15 weight %, of &Dgr;2-cyclotetradecen-1-one. The oxocarbocyclic compound-containing mixtures have advantageous musk aroma imparting, augmenting and enhancing perfumery properties causing the mixtures to be useful in perfume compositions, perfumed articles and perfumed polymers, including particles and fibers produced therefrom.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: April 13, 2004
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Braja Dulal Mookherjee, Anubhav P. S. Narula, Michael G. Monteleone, Robert W. Trenkle
  • Publication number: 20030087797
    Abstract: Described are mixtures consisting essentially of oxomacrocyclic compounds containing greater than about 40 weight % &Dgr;3-cyclotetradecen-1-one and greater than about 40 weight % cyclotetradecanone and less than about 5 weight %, of &Dgr;2-cyclo-tetradecen-1-one, perfumery uses thereof and chemo-selective catalytic hydrogen process for preparing same by hydrogenating mixtures containing significant concentrations, greater than 15 weight %, of &Dgr;2-cyclotetradecen-1-one. The oxocarbocyclic compound-containing mixtures have advantageous musk aroma imparting, augmenting and enhancing perfumery properties causing the mixtures to be useful in perfume compositions, perfumed articles and perfumed polymers, including particles and fibers produced therefrom.
    Type: Application
    Filed: November 1, 2001
    Publication date: May 8, 2003
    Inventors: Braja Dulal Mookherjee, Anubhav P.S. Narula, Michael G. Monteleone, Robert W. Trenkle
  • Patent number: 5369978
    Abstract: Described is a process for qualitatively and quantitatively substantially continuously analyzing the aroma emitted and rates of emission of the aroma components thereof from two or more different varieties and/or species of living leaves, living fruits, living trees or living flowers at a given point in time or over a given time period using a multiplicity of enclosures to each contain one or more living leaves, living fruits, living flowers or cover surface portions of living trees or living fruits (one or more per enclosure) and having a single aroma trapping means communicating with all of the enclosures, and apparatus for carrying out such process.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: December 6, 1994
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Braja D. Mookherjee, Richard A. Wilson, Robert W. Trenkle, Michael J. Zampino, Edward S. Everett
  • Patent number: 5367899
    Abstract: Described is a process for qualitatively and quantitatively substantially continuously analyzing the aroma emitted and rates of emission of the components thereof from a portion of the outer surface of a living fruit and from a living flower located within a specifically enclosed 3-dimensional space proximate said portion of the outer surface of said living fruit, simultaneously, using an aroma trapping device connected to the enclosed 3-dimensional space, and utilizing the resulting analysis for preparation of perfume compositions, perfumed articles and colognes. Also described is apparatus for carrying out such a process. The living fruit may, for example, be a living pineapple or a living nectarine growing on a nectarine tree. The living flower may, for example, be a living rose growing on a rose bush.
    Type: Grant
    Filed: April 15, 1994
    Date of Patent: November 29, 1994
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Braja D. Mookherjee, Robert W. Trenkle, Richard A. Wilson
  • Patent number: 5355718
    Abstract: Described is a process for qualitatively and quantitatively substantially continuously analyzing the aroma emitted and rates of emission of the aroma components thereof from two or more different varieties and/or species of living flowers at a given point in time or over a given time period using a single enclosure to contain the living flowers and having aroma trapping means attached to the single enclosure and apparatus for carrying out such process. Also described is a process for preparing one or more perfume compositions comprising the steps of carrying out the aforementioned analysis or analyses and then, using the results of such analysis or analyses, providing and admixing at least the major components found in the analysis or analyses; apparatus for carrying out such process and perfume compositions prepared using such apparatus and process.
    Type: Grant
    Filed: July 16, 1993
    Date of Patent: October 18, 1994
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Braja D. Mookherjee, Robert W. Trenkle, Subha M. Patel
  • Patent number: 5321006
    Abstract: A process for producing flavor and fragrance compositions by means of first quantitatively and qualitatively substantially continuously analyzing the aroma emitted and rates of emission of the components thereof:(i) from within the pith section and/or the inner wood section; and(ii) the outer bark surface ofa living tree, simultaneously, and, optionally from within and from the outer surface of one or more fruits borne by said devices connected to the outer tree trunk surface and an inner location within the tree and, if desired, connected to the fruit surface and an internal location within the fruit and then providing at least the major aroma components found in at least one of the analyses and admixing the resulting components to form a fragrance composition and/or a flavor composition. The living tree, for example, may be a living Douglas Fir or a living Maple Tree or a living Papaya Tree or a living Mahogany Tree or a living Nectarine Tree.
    Type: Grant
    Filed: August 19, 1993
    Date of Patent: June 14, 1994
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Braja D. Mookherjee, Robert W. Trenkle, Subha M. Patel, Sharon M. Brown
  • Patent number: 5321005
    Abstract: A process for producing flavor and fragrance compositions by means of first quantitatively and qualitatively substantially continuously analyzing the aroma emitted and rates of emission of the components thereof:(I) from within; and(II) from the outer surface ofa living fruit using simultaneously-operating aroma trapping devices connected to (a) the outer surface of the living fruit and (b) an internal portion of the living fruit, and then providing and admixing at least the major components found in the analysis or analyses. The living fruit may, for example, be a living pineapple or a living nectarine growing on a nectarine tree.
    Type: Grant
    Filed: August 19, 1993
    Date of Patent: June 14, 1994
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Braja D. Mookherjee, Robert W. Trenkle, Michael J. Zampino, Richard A. Wilson, Subha M. Patel
  • Patent number: 5269169
    Abstract: A process for quantitatively and qualitatively substantially continuously analyzing the aroma emitted and rates of emission of the components thereof:(I) from within; and(II) from the outer surface of a living fruit using simultaneously-operating aroma trapping devices connected to (a) the outer surface of the living fruit and (b) an internal portion of the living fruit. Also described is apparatus for carrying out such a process. The living fruit may, for example, be a living pineapple or a living nectarine growing on a nectarine tree.
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: December 14, 1993
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Robert W. Trenkle, Braja D. Mookherjee, Michael J. Zampino, Richard A. Wilson, Subha M. Patel
  • Patent number: 5263359
    Abstract: A process for quantitatively and qualitatively substantially continuously analyzing the aroma emitted and rates of emission of the components thereof:(I) from within the pit section and/or the inner wood section; and(II) the outer bark surface ofa living tree, simultaneously, and optionally from within and from the outer surface of one or more fruits borne by said living tree using simultaneously operating aroma trapping devices connected to the outer tree trunk surface and an inner location within the tree and, if desired, connected to the fruit surface and an internal location within the fruit. Also described is apparatus for carrying out such a process. The living tree, for example, may be a living Douglas Fir or a living Maple Tree or a living Papaya Tree or a living Mahogany Tree or a living Nectarine Tree.
    Type: Grant
    Filed: February 26, 1993
    Date of Patent: November 23, 1993
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Braja D. Mookherjee, Robert W. Trenkle, Subha M. Patel, Sharon M. Brown
  • Patent number: 5008437
    Abstract: Described is the schiff base reaction product of methyl anthranilate having the structure: ##STR1## with ethyl vanillin having the structure: ##STR2## a compound having the structure: ##STR3## and uses thereof in augmenting or enhancing the aroma of perfume compositions, perfumed articles including perfumed polymers and colognes. The schiff base having the structure: ##STR4## also has unexpected, unobvious and advantageous utilities for its deodorancy properties in addition to having valuable properties as a fragrance material.
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: April 16, 1991
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Braja D. Mookherjee, Robert W. Trenkle, Nicholas Calderone, Ronald S. Fenn
  • Patent number: 4960754
    Abstract: Described are 3,7-dimethyl-6,7-dioxo-1,3-octadienes or mixtures of same defined according to the structure: ##STR1## wherein R is hydrogen or ethyl and X is one of the moieties: ##STR2## and wherein the wavy lines represent a "E" or "Z" configuration of the methyl and vinyl moiety about the 3,4-pi-bond of the molecule, as well as methods for methods for augmenting or enhancing the aroma of consumable materials including perfumes, colognes and perfumed articles by adding thereto an aroma augmenting or enhancing quantity of at least one of said 3,7-dimethyl-6,7-dioxo-1,3-octadienes.
    Type: Grant
    Filed: December 8, 1989
    Date of Patent: October 2, 1990
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Richard A. Wilson, Michael J. Zampino, Braja D. Mookherjee, Robert W. Trenkle, Anton Van Ouwerkerk, Myrna L. Hagedorn, Michael G. Monteleone
  • Patent number: 4948597
    Abstract: Described are the schiff base reaction products of alkyl anthranilates having the structure: ##STR1## wherein R" represents ethyl or methyl with ketones and aldehydes defined according to the structure: ##STR2## wherein R' represents methyl or hydrogen and R represents one of the moieties: ##STR3## including compounds defined according to the generic structure: ##STR4## wherein R, R' and R" are defined, supra. Also described are uses of such schiff base reaction products in augmenting or enhancing the aroma or taste of consumable materials including perfume compositions, perfurmed articles (including perfumed polymers, detergents and fabric softeners), colognes, foodstuffs, chewing gums, toothpastes, medicinal products and chewing tobaccos. The schiff base reaction products of our invention also have unexpected, unobvious and advantageous utilities for their deodorancy properties in addition to having valuable properties as fragrance materials and as flavor materials.
    Type: Grant
    Filed: May 25, 1989
    Date of Patent: August 14, 1990
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Braja D. Mookherjee, Robert W. Trenkle, Nicholas Calderone, Keith P. Sands
  • Patent number: 4915866
    Abstract: Described are schiff base reaction products of alkyl anthranilates having the structure: ##STR1## wherein R.sub.3 represents methyl or ethyl; helional having the structure: ##STR2## and aldehydes having the generic structure: ##STR3## wherein R represents a hydrocarbyl or hydroxy hydrocarbyl moiety including the aldehydes:(a) pinoacetaldehyde having the structure: ##STR4## (b) pinoisobutyraldehyde having the structure: ##STR5## and (c) lyral, a mixture of compounds having the structures: ##STR6## and derivatives there and organoleptic uses thereof in augmenting or enhanving the aroma or taste of consumable materials including perfume compositions, colognes, perfumed articles, foodstuffs, chewing gums and beverages.
    Type: Grant
    Filed: January 10, 1989
    Date of Patent: April 10, 1990
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Braja D. Mookherjee, Robert W. Trenkle, Nicholas Calderone, Lisa Schreck, Keith P. Sands
  • Patent number: 4880640
    Abstract: Described are the schiff base reaction products of alkyl anthranilates having the structure: ##STR1## wherein R" represents ethyl or methyl with ketones and aldehydes defined according to the structure: ##STR2## wherein R' represents methyl or hydrogen and R represents one of the moieties: ##STR3## including compounds defined according to the generic structure: ##STR4## wherein R, R' and R" are defined, supra. Also described are uses of such schiff base reaction products in augmenting or enhancing the aroma or taste of consumable materials including perfume compositions, perfumed articles (including perfumed polymers, detergents and fabric softeners), colognes, foodstuffs, chewing gums, toothpastes, medicinal products and chewing tobaccos. The schiff base reaction products of our invention also have unexpected, unobvious and advantageous utilities for their deodorancy properties in addition to having valuable properties as fragrance materials and as flavor materials.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: November 14, 1989
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Braja D. Mookherjee, Robert W. Trenkle, Nicholas Calderone, Keith P. Sands
  • Patent number: 4879271
    Abstract: Described are the schiff base reaction products of alkyl anthranilates having the structure: ##STR1## wherein R" represents ethyl or methyl with ketones and aldehydes defined according to the structure: ##STR2## wherein R' represents methyl or hydrogen and R represents one of the moieties: ##STR3## including compounds defined according to the generic structure: ##STR4## wherein R, R' and R" are defined, supra. Also described are uses of such schiff base reaction products in augmenting or enhancing the aroma or taste of consumable materials including perfume compositions, perfumed articles (including perfumed polymers, detergents and fabric softeners), colognes, foodstuffs, chewing gums, toothpastes, medicinal products and chewing tobaccos. The schiff base reaction products of our invention also have unexpected, unobvious and advantageous utilities for their deodorancy properties in addition to having valuable properties as fragrance materials and as flavor materials.
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: November 7, 1989
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Braja D. Mookherjee, Robert W. Trenkle, Nicholas Calderone, Keith P. Sands
  • Patent number: 4865853
    Abstract: Described are schiff base reaction products of alkyl anthanilates having the structure: ##STR1## wherein R.sub.3 represents methyl or ethyl and aldehydes of the generic structure: ##STR2## wherein R represents unsaturated hydrocarbyl and alkoxy hydrocarbyl moieties or mixtures of aldehydes having the structures: ##STR3## wherein R.sub.1 and R.sub.2 are different alkoxy hydrocarbyl moieties and hydrocarbyl moieties including the aldehydes:(a) bergamal having the structure: ##STR4## (b) floralozone having the structure: ##STR5## (c) pino acetaldehyde having the structure: ##STR6## (d) pino isobutyraldehyde having the structure: ##STR7## (e) melonal having the structure: ##STR8## and (f) canthoxal having the structure: ##STR9## and organoleptic uses thereof in augmenting or enhancing the aroma or taste of consumable materials including perfume compositions, colognes, perfumed articles, foodstuffs, chewing gums and beverages.
    Type: Grant
    Filed: March 15, 1989
    Date of Patent: September 12, 1989
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Braja D. Mookherjee, Robert W. Trenkle, Nicholas Calderone, Keith P. Sands, Myrna L. Hagedorn
  • Patent number: 4853369
    Abstract: Described is the schiff base reaction product of methyl anthranilate having the structure: ##STR1## with ethyl vanillin having the structure: ##STR2## a compound having the structure: ##STR3## and uses thereof in augmenting or enhancing the aroma of perfume compositions, perfumed articles including perfumed polymers and colognes. The schiff base having the structure: ##STR4## also has unexpected, unobvious and advantageous utilities for its deodorancy properties in addition to having valuable properties as a fragrance material.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: August 1, 1989
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Braja D. Mookherjee, Robert W. Trenkle, Nicholas Calderone, Ronald S. Fenn
  • Patent number: 4840801
    Abstract: Described is a process for augmenting or enhancing the aroma or taste of a foodstuff or chewing comprising the step of intimately admixing with a foodstuff or chewing gum base an aroma or taste augmenting or enhancing quantity of a composition of matter prepared by reacting canthoxal having the structure: ##STR1## with methyl anthranilate to produce a composition of matter containing a compound having the structure:
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: June 20, 1989
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Braja D. Mookherjee, Robert W. Trenkle, Nicholas Calderone, Keith P. Sands, Myrna L. Hagedorn