Patents by Inventor Robert P. Belko

Robert P. Belko 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: 5137869
    Abstract: Described is the methyl substituted tetrahydroindanone having the structure: ##STR1## and uses thereof in augmenting or enhancing the aroma of consumable materials selected from the group consisting of perfume compositions, colognes and perfumed articles.
    Type: Grant
    Filed: September 13, 1991
    Date of Patent: August 11, 1992
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Mark A. Sprecker, Robert P. Belko, Eleanor Fox, Alphonsus P. M. Maas, Djurre S. Postma
  • Patent number: 5097046
    Abstract: Described are alkyl-substituted tetra- or hexahydrobenzopyran derivatives defined according to one of the generic structures: ##STR1## wherein Z is a moiety in the alternative either ##STR2## wherein in the moiety having the structure: ##STR3## R' is methyl or ethyl and in the moiety having the structure: ##STR4## one of the dashed lines is a carbon-carbon double bond and each of the other of the dashed lines represent carbon-carbon single bonds; wherein R.sub.1 and R.sub.2 taken separately represent hydrogen or C.sub.1 -C.sub.3 lower alkyl (with the proviso that R.sub.1 and R.sub.2 are not both hydrogen) or R.sub.1 and R.sub.2 taken together complete a C.sub.5 or C.sub.
    Type: Grant
    Filed: January 18, 1991
    Date of Patent: March 17, 1992
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Mark A. Sprecker, Robert P. Belko, Marie R. Hanna, Charles E. J. Beck, Salvatore M. Brucato
  • Patent number: 5077273
    Abstract: Described are epoxyoctahydrodimethylacetonaphthones defined according to the generic structure: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents methyl or hydrogen with the proviso that one of R.sub.3 or R.sub.4 is methyl and the other of R.sub.3 or R.sub.4 is hydrogen; and perfumery uses thereof in augmenting or enhancing the aroma of perfume compositions, colognes and perfumed articles, including solid or liquid anionic, cationic, nonionic or zwitterionic detergents, fabric softener compositions, fabric softener articles, cosmetic powders, hair preparations and perfumed polymers.
    Type: Grant
    Filed: May 16, 1991
    Date of Patent: December 31, 1991
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Mark A. Sprecker, Robert P. Belko, Kathleen E. Boardwick
  • Patent number: 5030618
    Abstract: Described are alkyl-substituted tetra- or hexahydrobenzopyran derivatives defined according to one of the generic structures: ##STR1## wherein Z is a moiety in the alternative either ##STR2## wherein in the moiety having the structure: ##STR3## R' is methyl or ethyl and in the moiety having the structure: ##STR4## one of the dashed lines is a carbon-carbon double bond and each of the other of the dashed lines represent carbon-carbon single bonds; wherein R.sub.1 and R.sub.2 taken separately represent hydrogen or C.sub.1 -C.sub.3 lower alkyl (with the proviso that R.sub.1 and R.sub.2 are not both hydrogen) or R.sub.1 and R.sub.2 taken together complete a C.sub.5 or C.sub.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: July 9, 1991
    Assignee: International Flavors and Fragrances Inc.
    Inventors: Mark A. Sprecker, Robert P. Belko, Marie R. Hanna, Charles E. J. Beck, Salvatore M. Brucato
  • Patent number: 5023352
    Abstract: Described are alkyl-substituted tetra- or hexahydrobenzopyran derivatives defined according to one of the generic structures: ##STR1## wherein Z is a moiety in the alternative either ##STR2## wherein in the moiety having the structure: ##STR3## R' is methyl or ethyl and in the moiety having the structure: ##STR4## one of the dashed lines is a carbon-carbon double bond and each of the other of the dashed lines represent carbon-carbon single bonds; wherein R.sub.1 and R.sub.2 taken separately represent hydrogen or C.sub.1 -C.sub.3 lower alkyl (with the proviso that R.sub.1 and R.sub.2 are not both hydrogen) or R.sub.1 and R.sub.2 taken together complete a C.sub.5 or C.sub.6 cycloalkyl moiety; and uses thereof in augmenting or enhancing the aroma of perfume compositions, colognes and perfumed articles including but not limited to solid or liquid anionic, cationic, nonionic or zwitterionic detergents, fabric softener compositions, fabric softener articles, hair preparations, cosmetic powder and perfumed polymers.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: June 11, 1991
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Mark A. Sprecker, Robert P. Belko, Marie R. Hanna, Charles E. J. Beck, Salvatore M. Brucato
  • Patent number: 4999439
    Abstract: Described are alkyl-substituted tetra- or hexahydrobenzopyran derivatives defined according to one of the generic structures: ##STR1## wherein Z is a moiety in the alternative either ##STR2## wherein in the moiety having the structure: ##STR3## R' is methyl or ethyl and in the moiety having the structure: ##STR4## one of the dashed lines is a carbon-carbon double bond and each of the other of the dashed lines represent carbon-carbon single bonds; wherein R.sub.1 and R.sub.2 taken separately represent hydrogen or C.sub.1 -C.sub.3 lower alkyl (with the proviso that R.sub.1 and R.sub.2 are not both hydrogen) or R.sub.1 and R.sub.2 taken together complete a C.sub.5 or C.sub.
    Type: Grant
    Filed: March 22, 1990
    Date of Patent: March 12, 1991
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Mark A. Sprecker, Robert P. Belko, Marie R. Hanna, Charles E. J. Beck, Salvatore M. Brucato
  • Patent number: 4962090
    Abstract: Described are 2,4-disubstituted and 2,2,4-trisubstituted tetrahydropyranyl-4-ethers defined according to the generic structure: ##STR1## wherein R' represents methyl or ethyl; R.sub.1 and R.sub.2 taken alone are the same or different hydrogen, phenyl, C.sub.1 -C.sub.8 alkyl or C.sub.2 -C.sub.8 alkenyl (with the proviso that R.sub.1 and R.sub.2 are not both hydrogen) and R.sub.1 and R.sub.2 taken together represent C.sub.5 -C.sub.12 cycloalkyl or alkyl cycloalkyl, and reaction products containing said 2,4-disubstituted and 2,2,4-trisubstituted tetrahydropyranyl-4-ethers taken alone or taken further together in admixture with compounds defined according to the generic structure: ##STR2## wherein in the compounds defined according to the structure: ##STR3## one of the dashed lines in the moiety: ##STR4## represents a carbon-carbon double bond and each of the other dashed lines represent carbon-carbon single bonds; and R.sub.1 ' and R.sub.2 ' taken alone or taken together are defined in the same manner that R.
    Type: Grant
    Filed: March 22, 1990
    Date of Patent: October 9, 1990
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Mark A. Sprecker, Robert P. Belko, Salvatore M. Brucato, Charles E. J. Beck, Marie R. Hanna
  • Patent number: 4933320
    Abstract: Described is an isomer-directed process for producing asymmetric ketones defined according to the generic structure: ##STR1## wherein one of Z.sub.1 or Z.sub.2 is the moiety: ##STR2## and the other of Z.sub.1 or Z.sub.2 is hydrogen; wherein R.sub.11 and R.sub.21 represent hydrogen or the same or different alkyl or alkenyl with the proviso that R.sub.11 and R.sub.21 are not both hydrogen or wherein R.sub.11 and R.sub.21 taken together:(i) complete a cycloalkyl, cycloalkenyl, bicycloalkyl, mono or polyalkyl cycloalkyl or mono or polyalkyl cycloalkenyl ring, or(ii) represent alkylidene, cycloalkenyl alkylidene, aralkylidene, mono or polyalkyl cycloalkenyl alkylidene or mono or polyalkyl aralkylidene;and wherein R.sub.6, R.sub.7 and R.sub.
    Type: Grant
    Filed: May 16, 1986
    Date of Patent: June 12, 1990
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Mark A. Sprecker, Robert P. Belko, William L. Schreiber, Michael Licciardello
  • Patent number: 4933319
    Abstract: Described are substituted tetrahydroindanes defined according to the generic structure: ##STR1## wherein Z is a moiety selected from the group consisting of: ##STR2## wherein X represents chloro or bromo; wherein R.sub.1 represents:--OR.sub.3 or --O.sup..crclbar. M.sup..sym. ;wherein R.sub.3 represents hydrogen, methyl or ethyl; wherein M represents alkali metal, sodium potassium or lithium; wherein R.sub.2 represents hydrogen or the moiety: ##STR3## as well as uses of substituted tetrahydroindanes defined according to the structure: ##STR4## wherein Z' represents a moiety selected from the group consisting of: ##STR5## wherein R.sub.2 is hydrogen and wherein R.sub.1 is the moiety:--OR.sub.3 'wherein R.sub.
    Type: Grant
    Filed: October 20, 1989
    Date of Patent: June 12, 1990
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Mark A. Sprecker, Robert P. Belko, Charles E. J. Beck
  • Patent number: 4933321
    Abstract: Described are triisobutylene alcohols and esters and halogenated intermediates for preparing same defined according to the generic structure: ##STR1## wherein one of the dashed lines represents a carbon-carbon single bond and the other of the dashed lines represents a carbon-carbon double bond; wherein R.sub.1 " and R.sub.2 " are the same or different and each represents hydrogen, chloro, bromo, hydroxyl or a C.sub.1 -C.sub.3 acyloxy with the provisos that when the dashed line in the 4-4' position is a carbon-carbon double bond then R.sub.1 " is hydrogen and R.sub.2 " is not hydrogen; and R.sub.1 " and R.sub.2 " are not both hydrogen.Also described are the uses of the triisobutylene alcohols and esters in augmenting or enhancing the aroma of perfume composition, colognes and perfumed articles including but not limited to perfumed polymers solid or liquid anionic, cationic, nonionic or switterionic detergents, fabric softener compositions, fabric softener articles, cosmetic powders and hair preparations.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: June 12, 1990
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Mark A. Sprecker, Robert P. Belko, Marie R. Hanna
  • Patent number: 4933488
    Abstract: Described are triisobutylene alcohols and esters and halogenated intermediates for preparing same defined according to the generic structure: ##STR1## wherein one of the dashed lines represents a carbon-carbon single bond and the other of the dashed lines represents a carbon-carbon double bond; wherein R.sub.1 " and R.sub.2 " are the same or different and each represents hydrogen, chloro, bromo, hydroxyl or a C.sub.1 -C.sub.3 acyloxy with the provisos that when the dashed line in the 4--4' position is a carbon-carbon double bond then R.sub.1 " is hydrogen and R.sub.2 " is not hydrogen; and R.sub.1 " and R.sub.2 " are not both hydrogen.Also described are the uses of the triisobutylene alcohols and esters in augmenting or enhancing the aroma of perfume compositions, colognes and perfumed articles including but not limited to perfumed polymers solid or liquid anionic, cationic, nonionic or zwitterionic detergents, fabric softener compositions, fabric softener articles, cosmetic powders and hair preparations.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: June 12, 1990
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Mark A. Sprecker, Robert P. Belko, Marie R. Hanna
  • Patent number: 4924026
    Abstract: Described are triisobutylene alcohols and esters and halogenated intermediates for preparing same defined according to the generic structure: ##STR1## wherein one of the dashed lines represents a carbon-carbon single bond and the other of the dashed lines represents a carbon-carbon double bond; wherein R.sub.1 " and R.sub.2 " are the same or different and each represents hydrogen, chloro, bromo, hydroxyl or a C.sub.1 -C.sub.3 acyloxy with the provisos that when the dashed line in the 4--4' position is a carbon-carbon double bond then R.sub.1 " is hydrogen and R.sub.2 " is not hydrogen, and R.sub.1 " and R.sub.2 " are not both hydrogen.Also described are the uses of the triisobutylene alcohols and esters in augmenting or enhancing the aroma of perfume compositions, colognes and perfumed articles including but not limited to perfumed polymers solid or liquid anionic, cationic, nonionic or zwitterionic detergents, fabric softener compositions, fabric softener articles, cosmetic powders and hair preparations.
    Type: Grant
    Filed: August 11, 1989
    Date of Patent: May 8, 1990
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Mark A. Sprecker, Robert P. Belko, Marie R. Hanna
  • Patent number: 4902840
    Abstract: Described are substituted tetrahydroindanes defined according to the generic structure: ##STR1## wherein Z is a moiety selected from the group consisting of: ##STR2## wherein X represents chloro or bromo; wherein R.sub.1 represents:--OR.sub.3 or --O.sup..sym. M.sup..crclbar. ;wherein R.sub.3 represents hydrogen, methyl or ethyl; wherein M represents alkali metal, sodium potassium or lithium; wherein R.sub.2 represents hydrogen or the moiety: ##STR3## as well as uses of substituted tetrahydroindanes defined according to the structure: ##STR4## wherein Z' represents a moiety selected from the group consisting of: ##STR5## wherein R.sub.2 is hydrogen and wherein R.sub.1 is the moiety:OR.sub.3 'wherein R.sub.
    Type: Grant
    Filed: April 28, 1989
    Date of Patent: February 20, 1990
    Assignee: International Flavors and Fragrances Inc.
    Inventors: Mark A. Sprecker, Robert P. Belko, Charles E. J. Beck
  • Patent number: 4902672
    Abstract: Described are polyalkyl indanyl n-propyl and allyl ethers defined according to the structure: ##STR1## wherein R.sub.3 represents methyl or hydrogen; wherein R.sub.1, R.sub.2, R.sub.4 and R.sub.5 each represents methyl or ethyl and wherein the dashed line represents a carbon-carbon single bond or a carbon-carbon double bond with the provisos that:1. at least three of R.sub.1, R.sub.2, R.sub.4 and R.sub.5 represents methyl;2. when each of R.sub.1, R.sub.2, R.sub.4 and R.sub.5 is methyl, then R.sub.3 is methyl; and3. when the dashed line is a carbon-carbon double bond and R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are each methyland uses thereof in augmenting or enhancing the aroma of perfume compositions, colognes and perfumed articles including but not limited to perfumed polymers, solid or liquid anionic, cationic, nonionic or zwitterionic detergents, fabric softener compositions, fabric softener articles, cosmetic powders and hair preparations.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: February 20, 1990
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Mark A. Sprecker, Robert P. Belko, Ronald S. Fenn
  • Patent number: 4780564
    Abstract: Described is allyl 4-cyclooctenyl glycolate of our invention having the structure: ##STR1## and the perfumery use thereof in augmenting or enhancing the aroma of perfume compositions, colognes and perfumed articles including solid or liquid anionic, cationic, nonionic or zwitterionic detergents, fabric softener compositions, fabric softener articles, hair preparations and cosmetic powders.
    Type: Grant
    Filed: June 29, 1987
    Date of Patent: October 25, 1988
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Mark A. Sprecker, William L. Schreiber, Robert P. Belko
  • Patent number: 4772583
    Abstract: Described is the novel compound genus the beta-alkylidene phenethyl alcohol esters and ethers of our invention defined according to the generic structure: ##STR1## wherein R.sub.5 represents hydrogen or methyl; wherein R.sub.6 represents one of the moieties: ##STR2## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents the same or different hydrogen or methyl; wherein R.sub.7 represents methyl or ethyl; and wherein R.sub.8 represents hydrogen or methyl; useful in augmenting or enhancing the aroma of consumable materials including perfumes, colognes and perfumed articles including solid or liquid anionic, cationic, nonionic or zwitterionic detergents, fabric softener articles, fabric softener compositions, cosmetic powders and hair preparations.
    Type: Grant
    Filed: December 18, 1987
    Date of Patent: September 20, 1988
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Mark A. Sprecker, Robert P. Belko, Richard M. Boden, Marie R. Hanna
  • Patent number: 4756840
    Abstract: Described is the novel compound genus, the beta-alkylidene phenethyl alcohols of our invention, defined according to the generic structure: ##STR1## (wherein R.sub.1 represents hydrogen or methyl, useful in augmenting or enhancing the aroma of consumable materials including perfumes, colognes and perfumed articles including solid or liquid anionic, cationic, nonionic or zwitterionic detergents, fabric softener articles, fabric softener compositions, cosmetic powders and hair preparations).
    Type: Grant
    Filed: September 3, 1987
    Date of Patent: July 12, 1988
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Mark A. Sprecker, Robert P. Belko
  • Patent number: 4755502
    Abstract: Described is allyl-4-cyclooctenyl glycolate of our invention having the structure: ##STR1## and the perfumery use thereof in augmenting or enhancing the aroma of perfume compositions, colognes and perfumed articles including solid or liquid anionic, cationic, nonionic or zwitterionic detergents, fabric softener compositions, fabric softener articles, hair preparations and cosmetic powders. The genus defined according to the structure: ##STR2## wherein R represents hydrogen, allyl or alkali metal and: represents a covalent bond wherein R represents hydrogen or allyl and an ionic bond where R represents alkali metal defines all of the products of our invention including intermediates useful in the process for preparing the compound having the structure: ##STR3## .
    Type: Grant
    Filed: October 29, 1987
    Date of Patent: July 5, 1988
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Mark A. Sprecker, William L. Schreiber, Robert P. Belko
  • Patent number: 4681976
    Abstract: Described are para-carboalkoxy cyclohexanones defined according to the structure: ##STR1## wherein R.sub.1 represents hydrogen or C.sub.1 -C.sub.7 alkyl and R.sub.2 represents methyl or ethyl and uses thereof in augmenting or enhancing the aroma of consumable materials including foodstuffs, chewing gums, toothpastes, medicinal products, chewing tobaccos, perfume compositions, colognes and perfumed articles (e.g., solid or liquid anionic, cationic, nonionic or zwitterionic detergents, cosmetic compositions, fabric softener compositions, fabric softener articles, hair preparations and perfumed polymers. The compounds defined according to the structure: ##STR2## wherein R.sub.1 ' represents C.sub.4 -C.sub.7 alkyl and R.sub.2 represents methyl or ethyl are novel compounds.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: July 21, 1987
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Mark A. Sprecker, Wilhelmus J. Wiegers, Robert P. Belko, Richard M. Boden
  • Patent number: 4668817
    Abstract: Described are para-carboalkoxy cyclohexanones defined according to the structure: ##STR1## wherein R.sub.1 represents hydrogen or C.sub.1 -C.sub.7 alkyl and R.sub.2 represents methyl or ethyl and uses thereof in augmenting or enhancing the aroma of consumable materials including foodstuffs, chewing gums, toothpastes, medicinal products, chewing tobaccos, perfume compositions, colognes and perfumed articles (e.g., solid or liquid anionic, cationic, nonionic or zwitterionic detergents, cosmetic compositions, fabric softener compositions, fabric softener articles, hair preparations and perfumed polymers. The compounds defined according to the structure: ##STR2## wherein R.sub.1 ' represents C.sub.4 -C.sub.7 alkyl and R.sub.2 represents methyl or ethyl are novel compounds.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: May 26, 1987
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Mark A. Sprecker, Wilhelmus J. Wiegers, Robert P. Belko, Richard M. Boden