Patents by Inventor Somnath Das
Somnath Das 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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Publication number: 20240058236Abstract: The present invention relates to an anhydrous anti-perspirant (AP) composition that comprises conventional metal-based AP actives, natural oil, antioxidant and select non-ionic surfactant that ensures that when such compositions are used on a body part e.g., the axilla there is minimal or no yellow coloured staining of the fabric which is worn by an individual through several use-wash-rinse-dry cycles.Type: ApplicationFiled: December 9, 2021Publication date: February 22, 2024Applicant: Conopco, Inc., d/b/a UNILEVERInventors: Somnath DAS, Praveen NYALAM
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Publication number: 20230293400Abstract: The present invention is in the field of personal care compositions, in particular compositions comprising antiperspirant actives. The present invention more particularly relates to compositions containing zinc based actives, yet exhibit good efficacy. This is achieved through use of an active which is a complex of a zinc salt with a ? amino acid, in an anhydrous solvent comprising an alcohol, along with a multivalent metal salt.Type: ApplicationFiled: August 5, 2021Publication date: September 21, 2023Applicant: Conopco, Inc., d/b/a UNILEVERInventors: Somnath DAS, Satyajit SAMADDER
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Patent number: 11681603Abstract: An illustrative resolution is generated using a computer for a reported operational issue while using a computer system. A learning model is developed using the computer to facilitate resolving an operational error of a computer system. The learning model can include generating an error report, based on tracking user inputs into a computer system and a plurality of state transitions of the computer system, respectively, when the operational error is not resolved by the user inputs. An error screenshot for each operational step associated with the user inputs is generated. A state transition is cross referenced to a corresponding operational step, and to a best practice in a user's manual, respectively. A deviation of an operational step from a best practice in the user's manual, respectively, is generated. An error screenshot is marked illustratively to show the deviation from the best practice in comparison to the operational step.Type: GrantFiled: March 31, 2021Date of Patent: June 20, 2023Assignee: International Business Machines CorporationInventors: Radha Mohan De, Sujoy Roy, Somnath Das, Shivalik Chakravarty
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Publication number: 20220409502Abstract: The present invention is in the field of personal care compositions, in particular compositions comprising antiperspirant actives. The present invention more particularly relates to compositions which do not contain the conventional and well established aluminium based actives, yet exhibit similar efficacy. This is achieved through use of an active which is a complex of a zinc salt with a ? amino acid in an anhydrous carrier comprising a specific mixture of ethanol and a C2 to C4 glycol.Type: ApplicationFiled: November 17, 2020Publication date: December 29, 2022Applicant: Conopco, Inc., d/b/a UNILEVERInventors: Somnath DAS, Satyajit SAMADDER, Philip Christopher WATERFIELD
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Publication number: 20220318125Abstract: An illustrative resolution is generated using a computer for a reported operational issue while using a computer system. A learning model is developed using the computer to facilitate resolving an operational error of a computer system. The learning model can include generating an error report, based on tracking user inputs into a computer system and a plurality of state transitions of the computer system, respectively, when the operational error is not resolved by the user inputs. An error screenshot for each operational step associated with the user inputs is generated. A state transition is cross referenced to a corresponding operational step, and to a best practice in a user's manual, respectively. A deviation of an operational step from a best practice in the user's manual, respectively, is generated. An error screenshot is marked illustratively to show the deviation from the best practice in comparison to the operational step.Type: ApplicationFiled: March 31, 2021Publication date: October 6, 2022Inventors: Radha Mohan De, Sujoy Roy, Somnath Das, Shivalik Chakravarty
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Publication number: 20210392900Abstract: The present invention relates to an antimicrobial particulate composition and a process for preparing the same. The invention also relates to a personal care composition comprising the antimicrobial particulate composition. The invention ensures desired efficacy on preparation at production scale while exhibiting a desired light coloured appearance of the composition.Type: ApplicationFiled: March 1, 2019Publication date: December 23, 2021Applicant: Conopco, Inc., d/b/a UNILEVERInventors: Rupak MITRA, Girish MURALIDHARAN, Amitava PRAMANIK, Samarpita SARKAR, Somnath DAS
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Publication number: 20210283025Abstract: The present invention relates to hair treatment compositions. In particular, the invention relates to hair treatment compositions that stimulate hair growth. Various compounds and combinations thereof have been reported for use in the treatment of hair to stimulate growth. Although the hair treatment compositions in the prior art provides for hair growth, there is unmet need for improved and superior compositions. It is therefore an object of the present invention to provide an improved and superior composition for stimulating hair growth. Disclosed is a hair treatment composition comprising (i) a polymorph of calcium carbonate; (ii) a water-soluble compound of calcium; and (iii) a suitable carrier. wherein said polymorph is at least one of calcite, vaterite or aragonite and wherein particle size of said polymorph is 1 ?m to 10 ?m.Type: ApplicationFiled: August 3, 2017Publication date: September 16, 2021Inventors: Somnath DAS, Vijay Ramchandra GADGIL, Debjani GHOSH, Nidhi JAGADISH
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Publication number: 20200397673Abstract: This invention relates to an antimicrobial composition more particularly a personal care or cleansing composition for care or cleansing of hair or body. It more particularly relates to combination of crystal habit modified zinc oxide with zinc pyrithione that interact to provide synergistic antimicrobial efficacy for anti-dandruff benefits.Type: ApplicationFiled: November 26, 2018Publication date: December 24, 2020Inventors: Somnath DAS, Amitava PRAMANIK
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Publication number: 20200360249Abstract: Disclosed is an antimicrobial composition comprising a polyvalent metal pyrithione and a complex of a polyvalent metal with pyridine amide. The composition may be used for personal cleansing and is especially preferred to be delivered as a shampoo or hair conditioner.Type: ApplicationFiled: August 28, 2018Publication date: November 19, 2020Inventors: Somnath DAS, Amitava PRAMANIK
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Publication number: 20200253845Abstract: Disclosed is an antimicrobial composition comprising zinc pyrithione and habit modified crystals of zinc oxide preferably comprising entrapped particles of water soluble protein. The protein may be selected from at least one of sericin, bovine serum albumin, gelatin, egg-albumin, casein, zein, whey or lysozyme. The composition may be used for personal cleansing and is especially preferred to be delivered as a shampoo or hair conditioner.Type: ApplicationFiled: August 27, 2018Publication date: August 13, 2020Inventors: Somnath DAS, Amitava PRAMANIK
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Patent number: 10682298Abstract: The present invention relates to a process for preparing an antimicrobial particulate composition. The invention also relates to personal care or hygiene composition comprising an antimicrobial particulate composition obtainable by the process in accordance with this invention. The invention more particularly relates to a process for preparing an antimicrobial metal nanoparticles immobilized in an inorganic porous material and also incorporating these particles in personal care or hygiene compositions. The antimicrobial particulate composition comprises 0.05% to 3% by weight of antimicrobial metal particles and 97 to 99.95% by weight of immobilizer comprising an inorganic porous material selected from zinc oxide, magnesium hydroxide or calcium carbonate.Type: GrantFiled: July 16, 2015Date of Patent: June 16, 2020Assignee: CONOPCO, INC.Inventors: Somnath Das, Satyaranjan Gupta, Rupak Mitra, Girish Muralidharan, Amitava Pramanik
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Patent number: 10661496Abstract: The present invention relates to surface modification of materials. In particular the invention relates to a process for surface modification of polymeric materials to make the surface non-stick in order to reduce the ability of materials to stick on it and thus provide an easy flow. The process comprises embossing the surface of an object with a pattern comprising micropillars having different shapes (circle, square, rectangular, polygonal prismatic) with an equivalent circular diameter, height and pitch in the range 10-200 microns; applying a layer of adhesive to get a coverage of 0.1 to 5 mg/cm on the embossed surface either by spray coating or dip coating; depositing 0.2 to 1.2 mg/cm of hydrophobic particles wherein the hydrophobic particles have a particle size in the range 0.1 to 10 microns.Type: GrantFiled: February 16, 2016Date of Patent: May 26, 2020Assignee: CONOPCO, INC.Inventors: Somnath Das, Girish Muralidharan, Amitava Pramanik
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Publication number: 20190262243Abstract: The present invention relates to a process for preparing an antimicrobial particulate composition. The invention also relates to personal care or hygiene composition comprising an antimicrobial particulate composition obtainable by the process in accordance with this invention. The invention more particularly relates to a process for preparing an antimicrobial metal nanoparticles immobilized in an inorganic porous material and also incorporating these particles in personal care or hygiene compositions. The antimicrobial particulate composition comprises 0.05% to 3% by weight of antimicrobial metal particles and 97 to 99.95% by weight of immobilizer comprising an inorganic porous material selected from zinc oxide, magnesium hydroxide or calcium carbonate.Type: ApplicationFiled: May 10, 2019Publication date: August 29, 2019Inventors: Somnath DAS, Satyaranjan GUPTA, Rupak MITRA, Girish MURALIDHARAN, Amitava PRAMANIK
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Publication number: 20180117828Abstract: The present invention relates to surface modification of materials. In particular the invention relates to a process for surface modification of polymeric materials to make the surface non-stick in order to reduce the ability of materials to stick on it and thus provide an easy flow. The process comprises embossing the surface of an object with a pattern comprising micropillars having different shapes (circle, square, rectangular, polygonal prismatic) with an equivalent circular diameter, height and pitch in the range 10-200 microns; applying a layer of adhesive to get a coverage of 0.1 to 5 mg/cm on the embossed surface either by spray coating or dip coating; depositing 0.2 to 1.2 mg/cm of hydrophobic particles wherein the hydrophobic particles have a particle size in the range 0.1 to 10 microns.Type: ApplicationFiled: February 16, 2016Publication date: May 3, 2018Applicant: Conopco, Inc., d/b/a UNILEVERInventors: Somnath DAS, Girish MURALIDHARAN, Amitava PRAMANIK
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Publication number: 20170209347Abstract: The present invention relates to a process for preparing an antimicrobial particulate composition. The invention also relates to personal care or hygiene composition comprising an antimicrobial particulate composition obtainable by the process in accordance with this invention. The invention more particularly relates to a process for preparing an antimicrobial metal nanoparticles immobilized in an inorganic porous material and also incorporating these particles in personal care or hygiene compositions. The antimicrobial particulate composition comprises 0.05% to 3% by weight of antimicrobial metal particles and 97 to 99.95% by weight of immobilizer comprising an inorganic porous material selected from zinc oxide, magnesium hydroxide or calcium carbonate.Type: ApplicationFiled: July 16, 2015Publication date: July 27, 2017Applicant: Conopco, Inc., d/b/a UNILEVERInventors: Somnath DAS, Satyaranjan GUPTA, Rupak MITRA, Girish MURALIDHARAN, Amitava PRAMANIK
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Publication number: 20110232522Abstract: It has been found that hydrophobicity and stain-resistance can be imparted to a substrate by contacting the substrate with soap and a polyaluminum chloride in presence of water under specific range of pH, while the further addition of a quaternary silicone oil imparts oily soil repellence.Type: ApplicationFiled: November 25, 2009Publication date: September 29, 2011Inventors: Somnath Das, Amitava Pramanik, Srinivasa Raman, Arpita Sarkar
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Publication number: 20100281624Abstract: The present invention provides a method or treating a fabric comprising the steps of: a) contacting the fabric with a compound of an alkaline earth metal, titanium or zinc, followed by; b) contacting the fabric with C8-C24 soap, and; contacting the fabric with a water soluble compound of aluminium prior to or concurrent with the step (b), where each of the steps is carried out in presence of an aqueous carrier.Type: ApplicationFiled: August 28, 2008Publication date: November 11, 2010Inventors: Somnath Das, Amitava Pramanik, Poulami Sengupta, Gopa Kumar Velayudhan Nair