Patents by Inventor Ranya Muralidhara

Ranya Muralidhara 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: 4565707
    Abstract: Described are dialkylthioalkenes, dialkylthioalkylcycloalkenes and monoalkylthioalkenylcycloalkenes defined according to the generic structure: ##STR1## as well as the genus defined according to the structure: ##STR2## wherein R represents C.sub.6 -C.sub.11 alkenyl or cycloalkenylalkyl; and wherein R.sub.2 represents C.sub.1 -C.sub.3 alkyl and R.sub.3 is C.sub.1 -C.sub.3 alkyl and organoleptic uses thereof in augmenting or enhancing the aroma or taste of foodstuffs, chewing gums, toothpastes or medicinal products.
    Type: Grant
    Filed: May 8, 1985
    Date of Patent: January 21, 1986
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Alan O. Pittet, Ranya Muralidhara, Kevin P. Miller, Domenick Luccarelli, Jr., Manfred H. Vock
  • Patent number: 4557941
    Abstract: Described is the genus of mercapto-C.sub.2 -C.sub.3 -alkanoic acid esters of citronellol, geraniol and melanol defined according to the structure: ##STR1## wherein N represents 0 or 1, M represents 0, 1 or 2; P represents 0 or 1; and the dashed line represents a carbon-carbon single bond or a carbon-carbon double bond with the proviso that when N is 0 then the dashed line represents a carbon-carbon single bond and uses thereof in augmenting or enhancing the aroma or taste of foodstuffs.
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: December 10, 1985
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Alan O. Pittet, Ranya Muralidhara, Manfred H. Vock
  • Patent number: 4552770
    Abstract: Described is the genus of 4(hydrocarbylthio)acetoacetic esters defined according to the structure: ##STR1## wherein R.sub.1 represents C.sub.2 -C.sub.6 aliphatic hydrocarbyl and R.sub.2 represents hydrogen or C.sub.1 -C.sub.2 aliphatic hydrocarbyl and the uses of such 4(hydrocarbylthio)acetoacetic esters for augmenting or enhancing the aroma or taste of foodstuffs and chewing gums.
    Type: Grant
    Filed: February 6, 1985
    Date of Patent: November 12, 1985
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Alan O. Pittet, Thomas F. Courtney, Jr., Ranya Muralidhara
  • Patent number: 4547594
    Abstract: Described is a process for preparing solanone and norsolanadione wherein in preparing solanone, the compound having the structure: ##STR1## or a mixture of compounds defined according to the structure: ##STR2## is reacted with methyl lithium and the resulting intermediate is hydrolyzed and the resulting compound is dehydrated and wherein in preparing norsolanadione this compound or mixture of compounds is reacted with ethylene glycol or propylene glycol thereby forming a ketal and the resulting ketal is reacted with methyl lithium and the resulting intermediate is then hydrolyzed in the presence of acid in which one of the dashed lines represents a carbon-carbon single bond and the other of the dashed lines represents a carbon-carbon double bond.
    Type: Grant
    Filed: July 31, 1984
    Date of Patent: October 15, 1985
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Kenneth K. Light, William L. Schreiber, Joseph A. McGhie, Ronald P. Schreck, Takao Yoshida, Loren B. Schreiber, Ranya Muralidhara
  • Patent number: 4521613
    Abstract: Described is the genus of 4(hydrocarbylthio)acetoacetic esters defined according to the structure: ##STR1## wherein R.sub.1 represents C.sub.2 -C.sub.6 aliphatic hydrocarbyl and R.sub.2 represents hydrogen or C.sub.1 -C.sub.2 aliphatic hydrocarbyl and the uses of such 4(hydrocarbylthio)acetoacetic esters for augmenting or enhancing the aroma or taste of foodstuffs and chewing gums.
    Type: Grant
    Filed: March 14, 1984
    Date of Patent: June 4, 1985
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Alan O. Pittet, Thomas F. Courtney, Jr., Ranya Muralidhara
  • Patent number: 4517385
    Abstract: Described is a process for preparing solanone and norsolanadione, both useful as tobacco flavorants.
    Type: Grant
    Filed: July 31, 1984
    Date of Patent: May 14, 1985
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Kenneth K. Light, William L. Schreiber, Joseph A. McGhie, Ronald P. Schreck, Takao Yoshida, Loren B. Schreiber, Ranya Muralidhara
  • Patent number: 4515967
    Abstract: Described is the genus of methyl(methylthioalkyl)-1,3-dithiolanes defined according to the structure: ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and each represents methyl or hydrogen with the proviso that at least one of R.sub.1 and R.sub.2 is methyl; and wherein m represents an integer of 1 or 2 and uses of such methyl(methylthioalkyl)-1,3-dithiolanes in augmenting or enhancing the aroma or taste of foodstuffs.
    Type: Grant
    Filed: September 19, 1983
    Date of Patent: May 7, 1985
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Alan O. Pittet, Thomas F. Courtney, Jr., Ranya Muralidhara
  • Patent number: 4515966
    Abstract: Described is the genus of methyl(methylthioethyl)-1,3-dioxolanes and oxathiolanes defined according to the structure: ##STR1## wherein X and Y represent sulphur or oxygen with the proviso that at least one of X and Y is oxygen; wherein m is 0 or 1; and wherein R.sub.1 and R.sub.2 are the same or different and each represent hydrogen or methyl and uses of such methyl(methylthioethyl)-1,3-dioxolanes and oxathiolanes in augmenting or enhancing the aroma or taste of foodstuffs.
    Type: Grant
    Filed: September 19, 1983
    Date of Patent: May 7, 1985
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Alan O. Pittet, Thomas F. Courtney, Jr., Ranya Muralidhara
  • Patent number: 4515968
    Abstract: Described are furyl and phenyl mercaptals defined according to the generic structure: ##STR1## wherein the dashed line represents a carbon-carbon single bond or no bond; wherein R.sub.1 and R.sub.2 are the same or different and each represents hydrogen, methyl or ethyl; wherein p is 0 or 1; and wherein X represents a phenyl moiety having the structure: ##STR2## or a furyl moiety having the structure: ##STR3## and uses thereof in augmenting or enhancing the aroma or taste of foodstuffs.
    Type: Grant
    Filed: October 12, 1983
    Date of Patent: May 7, 1985
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Alan O. Pittet, Thomas F. Courtney, Jr., Ranya Muralidhara
  • Patent number: 4514429
    Abstract: Described are furyl and phenyl mercaptals defined according to the generic structure: ##STR1## wherein the dashed line represents a carbon-carbon single bond or no bond; wherein R.sub.1 and R.sub.2 are the same or different and each represents hydrogen, methyl or ethyl; wherein p is 0 or 1; and wherein X represents a phenyl moiety having the structure: ##STR2## or a furyl moiety having the structure: ##STR3## and uses thereof in augmenting or enhancing the aroma or taste of foodstuffs.
    Type: Grant
    Filed: August 24, 1984
    Date of Patent: April 30, 1985
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Alan O. Pittet, Thomas F. Courtney, Jr., Ranya Muralidhara
  • Patent number: 4504508
    Abstract: Described are phenyl mercaptals defined according to the generic structure: ##STR1## wherein p represents 0 or 1 and uses thereof in augmenting or enhancing the aroma or taste of foodstuffs.
    Type: Grant
    Filed: April 20, 1984
    Date of Patent: March 12, 1985
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Alan O. Pittet, Thomas F. Courtney, Jr., Ranya Muralidhara
  • Patent number: 4501904
    Abstract: Described are methyl substituted 2-(2,6-dimethyl-1,5-heptadienyl)-1,3-dithiolanes defined according to the structure: ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and each represents methyl or hydrogen with the proviso that at least one of R.sub.1 and R.sub.2 is methyl and uses thereof in augmenting or enhancing the aroma or taste of foodstuffs.
    Type: Grant
    Filed: September 19, 1983
    Date of Patent: February 26, 1985
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Alan O. Pittet, Thomas F. Courtney, Jr., Ranya Muralidhara
  • Patent number: 4499307
    Abstract: Described is a process for preparing 4,4A,5,6-tetrahydro-7-methyl-2-(3H)-naphthalenone having the structure: ##STR1## and intermediates useful in such process defined according to the structure: ##STR2## wherein one of R.sub.3 or R.sub.4 is hydrogen and the other of R.sub.3 or R.sub.4 is acetyl; and one of R.sub.1 or R.sub.2 is methyl and the other of R.sub.1 or R.sub.2 is acetoxy, said compound defined according to the structure: ##STR3## being useful in augmenting or enhancing the aroma or taste of consumable materials including foodstuffs, chewing gums, medicinal products, chewing tobaccos, toothpastes, smoking tobaccos, smoking tobacco articles, perfumes, colognes and perfumed articles including solid or liquid anionic, cationic, nonionic or zwitterionic detergents, fabric softeners, fabric softener articles and perfumed polymers.
    Type: Grant
    Filed: February 23, 1984
    Date of Patent: February 12, 1985
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Alan O. Pittet, Ranya Muralidhara, Myrna L. Hagedorn
  • Patent number: 4489009
    Abstract: Described is a process for preparing solanone and norsolanadione using chemical intermediates: which provide an organoleptically improved smoking tobacco product and additives therefor.
    Type: Grant
    Filed: July 8, 1983
    Date of Patent: December 18, 1984
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Kenneth K. Light, William L. Schreiber, Joseph A. McGhie, Ronald P. Schreck, Takao Yoshida, Loren B. Schreiber, Ranya Muralidhara
  • Patent number: 4483995
    Abstract: The invention provides an organoleptically improved smoking tobacco product and additives therefor as well as methods of making the same.
    Type: Grant
    Filed: July 8, 1983
    Date of Patent: November 20, 1984
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Kenneth K. Light, William L. Schreiber, Joseph A. McGhie, Ronald P. Schreck, Takao Yoshida, Loren B. Schreiber, Ranya Muralidhara
  • Patent number: 4481224
    Abstract: Described are the alkylthioalkanal dialkyl mercaptals defined according to the generic structure: ##STR1## wherein n is an integer of from 1 up to 3; and wherein R.sub.1 and R.sub.2 are the same or different C.sub.1 -C.sub.3 alkyl; process for preparing same and organoleptic uses thereof in augmenting or enhancing the aroma or taste of foodstuffs, chewing gums, medicinal products and toothpastes.
    Type: Grant
    Filed: August 8, 1983
    Date of Patent: November 6, 1984
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Ranya Muralidhara, Alan O. Pittet, Manfred H. Vock, David R. Bowen
  • Patent number: 4472445
    Abstract: Described is the genus of methyl(methylthioethyl)-1,3-dioxolanes and oxathiolanes defined according to the structure: ##STR1## wherein X and Y represent sulphur or oxygen with the proviso that at least one of X and Y is oxygen; wherein m is 0 or 1; and wherein R.sub.1 and R.sub.2 are the same or different and each represent hydrogen or methyl and uses of such methyl (methylthioethyl)-1,3-dioxolanes and oxathiolanes in augmenting or enhancing the aroma or taste of foodstuffs.
    Type: Grant
    Filed: September 19, 1983
    Date of Patent: September 18, 1984
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Manfred H. Vock, Alan O. Pittet, Thomas F. Courtney, Jr., Ranya Muralidhara
  • Patent number: 4472446
    Abstract: Described is the genus of methyl(methylthioalkyl)-1,3-dithiolanes defined according to the structure: ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and each represents methyl or hydrogen with the proviso that at least one of R.sub.1 and R.sub.2 is methyl; and wherein m represents an integer of 1 or 2 and uses of such methyl(methylthioalkyl)-1,3-dithiolanes in augmenting or enhancing the aroma or taste of foodstuffs.
    Type: Grant
    Filed: September 19, 1983
    Date of Patent: September 18, 1984
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Alan O. Pittet, Thomas F. Courtney, Jr., Manfred H. Vock, David R. Bowen, Ranya Muralidhara
  • Patent number: 4464408
    Abstract: Described are methyl substituted 2-(2,6-dimethyl-1,5-heptadienyl)-1,3-dithiolanes defined according to the structure: ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and each represents methyl or hydrogen with the proviso that at least one of R.sub.1 and R.sub.2 is methyl and uses thereof in augmenting or enhancing the aroma or taste of foodstuffs.
    Type: Grant
    Filed: September 19, 1983
    Date of Patent: August 7, 1984
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Alan O. Pittet, Manfred H. Vock, Thomas F. Courtney, Jr., Ranya Muralidhara
  • Patent number: 4418087
    Abstract: Described are mixtures of 4,4A,5,6-tetrahydro-7-methyl-2-(3H)-naphthalenone having the structure: ##STR1## and benzodioxanones having the generic structure: ##STR2## wherein Z is benzo or cyclohexano and uses thereof in augmenting or enhancing the aroma or taste of consumable materials including foodstuffs and fragrances.
    Type: Grant
    Filed: April 7, 1983
    Date of Patent: November 29, 1983
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Alan O. Pittet, Ranya Muralidhara, Myrna L. Hagedorn