Patents by Inventor Ravikumar Pillai
Ravikumar Pillai 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).
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Patent number: 12264299Abstract: Suggested is a detergent composition, comprising or consisting of: (a) at least one surfactant and (b) at least one 1,2 alkanediol having 5 to 14 carbon atoms.Type: GrantFiled: July 18, 2018Date of Patent: April 1, 2025Assignee: Symrise AGInventors: Luciene Baptista Bastos, Tatiana Martins Alves Santos, Ravikumar Pillai
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Publication number: 20240261197Abstract: Suggested is an antimicrobial mixture comprising or consisting of (a) at least one monocyclic sesquiterpene alcohol, (b) at least one active selected from the group consisting of 4-hydroxyacetophenone, sorbitan caprylate, cocamidopropyl PG-dimonium chloride phosphate, tetrasodium glutamate diacetate, glyceryl caprylate and glyceryl caprate, and optionally (c) at least one additional antimicrobial agent different from components (a) and (b).Type: ApplicationFiled: February 16, 2024Publication date: August 8, 2024Inventors: Imke MEYER, Ravikumar PILLAI
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Publication number: 20240122891Abstract: Suggested is a cosmetic or pharmaceutical composition comprising (a) at least one alkanediol ester of carboxylic acids as antimicrobial agent, wherein the carboxylic acids contain 6 to 12 C atoms; (b) at least one emulsifier; (c) water; (d) and at least one antimicrobial agent.Type: ApplicationFiled: November 6, 2019Publication date: April 18, 2024Inventors: Ravikumar PILLAI, Lars JUNG, Martina KÖNIG
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Patent number: 11938208Abstract: Suggested is an antimicrobial mixture comprising or consisting of (a) at least one monocyclic sesquiterpene alcohol, (b) at least one active selected from the group consisting of 4-hydroxyacetophenone, sorbitan caprylate, cocamidopropyl PG-dimonium chloride phosphate, tetrasodium glutamate diacetate, glyceryl caprylate and glyceryl caprate, and optionally (c) at least one additional antimicrobial agent different from components (a) and (b).Type: GrantFiled: March 29, 2019Date of Patent: March 26, 2024Assignee: Symrise AGInventors: Imke Meyer, Ravikumar Pillai
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Publication number: 20220362119Abstract: Suggested is an antimicrobial mixture comprising or consisting of (a) at least one monocyclic sesquiterpene alcohol, (b) at least one active selected from the group consisting of 4-hydroxyacetophenone, sorbitan caprylate, cocamidopropyl PG-dimonium chloride phosphate, tetrasodium glutamate diacetate, glyceryl caprylate and glyceryl caprate, and optionally (c) at least one additional antimicrobial agent different from components (a) and (b).Type: ApplicationFiled: March 29, 2019Publication date: November 17, 2022Inventors: Imke MEYER, Ravikumar PILLAI
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Publication number: 20220054378Abstract: Suggested is a cosmetic or pharmaceutical or detergent composition comprising 1,2 pentanediol, wherein said 1,2-pentanediol is obtained from a process comprising the following steps: (a) providing at least one starting material selected from furfuryl alcohol and furfural; (b) reacting at least one of said starting materials with hydrogen in the presence of a heterogeneous catalyst to form 1,2-pentanediol, wherein said heterogeneous catalyst comprises: one or more metals selected from the group consisting of platinum, rhodium, ruthenium, nickel, palladium and iridium in metallic form and/or one or more compounds of metals selected from the group consisting of platinum, rhodium, ruthenium, nickel, palladium and iridium; and one or more support materials selected from the group consisting of activated carbon, aluminum oxide, silicon dioxide, and silicon carbide; and (c) removing the 1,2-pentanediol thus obtained from the reaction mixture.Type: ApplicationFiled: October 30, 2018Publication date: February 24, 2022Inventors: Ravikumar PILLAI, Jürgen SIEWERT, Yonahha SANDER, Torsten STEPHAN, Christian WOLTER, Oliver LENZ
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Publication number: 20210261887Abstract: Suggested is a detergent composition, comprising or consisting of: (a) at least one surfactant and (b) at least one 1,2 alkanediol having 5 to 14 carbon atoms.Type: ApplicationFiled: July 18, 2018Publication date: August 26, 2021Inventors: Luciene Baptista BASTOS, Tatiana Martins Alves SANTOS, Ravikumar PILLAI
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Patent number: 10981854Abstract: Methods of purifying crude 4-hydroxyacetophenone using one or more solvents as well as products comprising or consisting of crystallized 4-hydroxyacetophenone and one, two or more solvent(s). The products may be obtained or obtainable from the methods for purifying crude 4-hydroxyacetophenone.Type: GrantFiled: August 24, 2020Date of Patent: April 20, 2021Assignees: SYMRISE AG, SINO-HIGH (CHINA) CO. LTD.Inventors: Ravikumar Pillai, Sven Siegel, Ev Suess, Karolin Bolte, Yan Liuxin
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Publication number: 20210002200Abstract: Methods of purifying crude 4-hydroxyacetophenone using one or more solvents as well as products comprising or consisting of crystallized 4-hydroxyacetophenone and one, two or more solvent(s). The products may be obtained or obtainable from the methods for purifying crude 4-hydroxyacetophenone.Type: ApplicationFiled: August 24, 2020Publication date: January 7, 2021Inventors: Ravikumar Pillai, Sven Siegel, Ev Suess, Karolin Bolte, Yan Liuxin
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Patent number: 10752571Abstract: Methods of purifying crude 4-hydroxyacetophenone using one or more solvents as well as products comprising or consisting of crystallized 4-hydroxyacetophenone and one, two or more solvent(s). The products may be obtained or obtainable from the methods for purifying crude 4-hydroxyacetophenone.Type: GrantFiled: April 21, 2017Date of Patent: August 25, 2020Assignees: SYMRISE AG, SINO-HIGH (CHINA) CO. LTD.Inventors: Ravikumar Pillai, Sven Siegel, Ev Suess, Karolin Bolte, Yan Liuxin
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Publication number: 20200039911Abstract: Methods of purifying crude 4-hydroxyacetophenone using one or more solvents as well as products comprising or consisting of crystallized 4-hydroxyacetophenone and one, two or more solvent(s). The products may be obtained or obtainable from the methods for purifying crude 4-hydroxyacetophenone.Type: ApplicationFiled: April 21, 2017Publication date: February 6, 2020Applicants: Symrise AG, Sino-High (China) Co. Ltd.Inventors: Ravikumar PILLAI, Sven SIEGEL, Ev SUESS, Karolin BOLTE, Yan LIUXIN
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Patent number: 10022310Abstract: An antimicrobial mixture comprising or consisting of: one or more compounds of the formula (I) their salts or solvates, wherein R1 and R2 in each case independently of one another are chosen from the group consisting of: H, OH, F, Cl, Br and I, and wherein X in each case denotes: (CH2)m where m=1, 2 or 3 or OCH2n where n=1, 2 or 3 or O—CH2—CH(R3) where R3=CH3 or CH2OH or (CH2—OpCH2 where p=1 or 2, wherein in the compound(s) of the formula I a primary alcohol function CH2OH is optionally replaced by a radical which is chosen from the group consisting of CH2OR4, COOH and COOR4 and/or a secondary alcohol function CHOH is optionally replaced by the radical CHOR4, wherein each R4 denotes an aliphatic or aromatic radical, independently of the meaning of further radicals, and one, two or more compounds chosen from the group consisting of the tropolones of the formula (II) wherein the substituents R5, R6, R7, R8, R9 independently of one another have the following meaning: H; linear or branchedType: GrantFiled: August 1, 2006Date of Patent: July 17, 2018Assignee: Symrise AGInventors: Gerhard Schmaus, Joachim Roeding, Ravikumar Pillai, William Johncock
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Patent number: 9585388Abstract: The invention relates to synergistically effective ternary antimicrobial mixtures.Type: GrantFiled: November 5, 2012Date of Patent: March 7, 2017Assignee: Symrise AGInventors: Ravikumar Pillai, Antje Köhler, Gerhard Schmaus
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Patent number: 8647651Abstract: Antimicrobial mixtures comprising or consisting of: one or more branched or unbranched alkanediols having 6-12 carbon atoms, one, two or more compounds chosen from the group consisting of the tropolones of the formula (I) wherein the substituents R1, R2, R3, R4 and R5 independently of one another have the following meaning: H; linear or branched, saturated or unsaturated, aliphatic hydrocarbon radical having up to 30 C atoms; OH; OR6, wherein R6 is a linear or branched, saturated or unsaturated, aliphatic hydrocarbon radical having up to 30 C atoms; COOH; COOR7, wherein R7 is a linear or branched, saturated or unsaturated, aliphatic hydrocarbon radical having up to 30 C atoms; NO2; NH2; F, Cl, Br, I; are described.Type: GrantFiled: July 27, 2006Date of Patent: February 11, 2014Assignee: Symrise AGInventors: Gerhard Schmaus, Sabine Lange, Ravikumar Pillai, William Johncock
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Publication number: 20100216892Abstract: Synergistically active mixtures of straight-chain 1,2-alkanediols having 5 to 10 C atoms and their use as skin moisture-regulating compositions are described. Binary and ternary mixtures of 1,2-pentanediol, 1,2-hexanediol and 1,2-octanediol have proved to be particularly active here. Cosmetic or pharmaceutical formulations and ready-to-use cosmetic or pharmaceutical products comprising particularly synergistically active mixtures of the 1,2-alkanediols mentioned and the use of these formulations and products are furthermore described.Type: ApplicationFiled: December 21, 2005Publication date: August 26, 2010Applicant: Symrise GmbH & Co. KGInventors: Gerhard Schmaus, Ravikumar Pillai
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SYNERGISTIC ACTIVE PREPARATIONS COMPRISING 1,2-DECANEDIOL AND FURTHER ANTIMICROBIAL ACTIVE COMPOUNDS
Publication number: 20100196504Abstract: The present invention relates to specific synergistic active antimicrobial compositions for hygiene disinfectant products like antimicrobial liquid or solid soaps, disinfectant cleansing solutions and disinfectant emulsions for the treatment of skin surface, specifically for the treatment of hand surface and/or for the treatment of technical surfaces like e.g. surgery equipment comprising a mixture comprising or consisting of a) an antimicrobial active amount of 1,2-decanediol of formula 1: and b) an antimicrobial active amount of one or more compounds selected from the group consisting of ethanol, propan-1-ol, propan-2-ol; chlorhexidine digluconate, chloroxylenol, triclosan, triclocarban, benzethonium chloride, methylbenzethonium chloride and benzalkonium chloride.Type: ApplicationFiled: May 4, 2007Publication date: August 5, 2010Applicant: SYMRISE GmbH & Co. KGInventors: Gerhard Schmaus, Ravikumar Pillai -
Publication number: 20090306154Abstract: The present invention relates to the antimicrobial mixture comprising or consisting of: (a) one, two or more tropolone derivatives of the formula (1) wherein the substituents R1, R2, R3, R4, R5 independently of one another have the following meaning: H; linear or branched, saturated or unsaturated, aliphatic hydrocarbon radical having up to 30 C atoms; OH; OR6, wherein R6 is a linear or branched, saturated or unsaturated, aliphatic hydrocarbon radical having up to 30 C atoms; COOH; COOR7, wherein R7 is a linear or branched, saturated or unsaturated, aliphatic hydrocarbon radical having up to 30 C atoms; NO2, NH2, F, Cl, Br or I or salts or solvates thereof and (b) one or more compounds selected from the group consisting of: chlorphenesin, imidazolidinyl urea, DMDM hydantoin, ethylhexylglycerin, diazolidinyl urea, sodium hydroxymethylglycinate and polyaminopropyl biguanide or salts or solvates thereof.Type: ApplicationFiled: June 29, 2007Publication date: December 10, 2009Applicant: SYMRISE GMBH & CO., KGInventors: Ravikumar Pillai, Gerhard Schmaus
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Publication number: 20090297468Abstract: The invention relates to a mixture comprising or consisting of: (a) one or more compounds of Formula 1: where the symbols in the compound or each compound of Formula 1 are defined as follows: m=0, 1, 2 or 3, p=0, 1 or 2, n=0, 1 or 2, where, when n=1 or 2, R1 and R2 in pairs are each H or together are another chemical bond, where, when m=1, 2 or 3, each X independently of the others is OH, Oalkyl or Oacyl, and where, when p=1 or 2, each Y independently of the others is OH, Oalkyl or Oacyl, and R3=H or alkyl, R3=H also representing the corresponding cosmetically or pharmaceutically acceptable salts and solvates; and (b) one or more cooling agents.Type: ApplicationFiled: June 14, 2006Publication date: December 3, 2009Applicant: SYMRISE GMBH & CO. KGInventors: Gabriele Vielhaber, Gerhard Schmaus, Ravikumar Pillai
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Publication number: 20090148391Abstract: The present invention relates to specific synergistic active skin- and/or hair-lightening and/or senile keratosis-reducing (cosmetic or pharmaceutical) preparations comprising a mixture comprising or consisting of a) a tyrosinase-inhibiting amount of one or more compounds of the formula 1: ?wherein: R1 is hydrogen, methyl, straight-chain or branched alkyl having 2-4 C atoms, OH or halogen, R2 is hydrogen, methyl or straight-chain or branched alkyl having 2-5 C atoms, R3 is methyl or straight-chain or branched alkyl having 2-5 C atoms, and R4 and R5 are, independently of one another hydrogen, methyl, straight-chain or branched alkyl having 2-5 C atoms, OH or halogen and b) a skin- and/or hair lightening and/or senile keratosis-reducing amount of one or more compounds selected from the group consisting of (i) chelating agents, (ii) phenolic derivatives, plant extracts with an amount of phenolic derivatives and (iii) organic acid derivatives as well as uses thereof.Type: ApplicationFiled: January 5, 2007Publication date: June 11, 2009Applicant: SYMRISE GmbH & Co. KGInventors: Gerhard Schmaus, Sabine Lange, Gabriele Vielhaber, Karin Schaper, Ravikumar Pillai
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Publication number: 20080008660Abstract: The invention relates primarily to specific uses of a compound of the Formula 1 or of mixtures of two or more different compounds of the Formula 1, in particular for producing an antimicrobially acting agent and agent against bad breath, as well as the corresponding production methods. In addition the invention relates to specific products, in particular oral hygiene products, comprising or consisting of a compound of the Formula 1 or of a mixture of two or more different compounds of the Formula 1 wherein the radicals of the compound of the Formula 1 or of each compound of the Formula 1 in the mixture are as defined in the preceding description.Type: ApplicationFiled: June 14, 2007Publication date: January 10, 2008Applicant: Symrise GmbH & Co. KGInventors: Jurgen Rabenhorst, Arnold Machinek, Gerhard Schmaus, Martina Herrmann, Gabriele Vielhaber, Ravikumar Pillai