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).

  • Publication number: 20240058236
    Abstract: 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: Application
    Filed: December 9, 2021
    Publication date: February 22, 2024
    Applicant: Conopco, Inc., d/b/a UNILEVER
    Inventors: Somnath DAS, Praveen NYALAM
  • Publication number: 20230293400
    Abstract: 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: Application
    Filed: August 5, 2021
    Publication date: September 21, 2023
    Applicant: Conopco, Inc., d/b/a UNILEVER
    Inventors: Somnath DAS, Satyajit SAMADDER
  • Patent number: 11681603
    Abstract: 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: Grant
    Filed: March 31, 2021
    Date of Patent: June 20, 2023
    Assignee: International Business Machines Corporation
    Inventors: Radha Mohan De, Sujoy Roy, Somnath Das, Shivalik Chakravarty
  • Publication number: 20220409502
    Abstract: 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: Application
    Filed: November 17, 2020
    Publication date: December 29, 2022
    Applicant: Conopco, Inc., d/b/a UNILEVER
    Inventors: Somnath DAS, Satyajit SAMADDER, Philip Christopher WATERFIELD
  • Publication number: 20220318125
    Abstract: 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: Application
    Filed: March 31, 2021
    Publication date: October 6, 2022
    Inventors: Radha Mohan De, Sujoy Roy, Somnath Das, Shivalik Chakravarty
  • Publication number: 20210392900
    Abstract: 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: Application
    Filed: March 1, 2019
    Publication date: December 23, 2021
    Applicant: Conopco, Inc., d/b/a UNILEVER
    Inventors: Rupak MITRA, Girish MURALIDHARAN, Amitava PRAMANIK, Samarpita SARKAR, Somnath DAS
  • Publication number: 20210283025
    Abstract: 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: Application
    Filed: August 3, 2017
    Publication date: September 16, 2021
    Inventors: Somnath DAS, Vijay Ramchandra GADGIL, Debjani GHOSH, Nidhi JAGADISH
  • Publication number: 20200397673
    Abstract: 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: Application
    Filed: November 26, 2018
    Publication date: December 24, 2020
    Inventors: Somnath DAS, Amitava PRAMANIK
  • Publication number: 20200360249
    Abstract: 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: Application
    Filed: August 28, 2018
    Publication date: November 19, 2020
    Inventors: Somnath DAS, Amitava PRAMANIK
  • Publication number: 20200253845
    Abstract: 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: Application
    Filed: August 27, 2018
    Publication date: August 13, 2020
    Inventors: Somnath DAS, Amitava PRAMANIK
  • Patent number: 10682298
    Abstract: 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: Grant
    Filed: July 16, 2015
    Date of Patent: June 16, 2020
    Assignee: CONOPCO, INC.
    Inventors: Somnath Das, Satyaranjan Gupta, Rupak Mitra, Girish Muralidharan, Amitava Pramanik
  • Patent number: 10661496
    Abstract: 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: Grant
    Filed: February 16, 2016
    Date of Patent: May 26, 2020
    Assignee: CONOPCO, INC.
    Inventors: Somnath Das, Girish Muralidharan, Amitava Pramanik
  • Publication number: 20190262243
    Abstract: 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: Application
    Filed: May 10, 2019
    Publication date: August 29, 2019
    Inventors: Somnath DAS, Satyaranjan GUPTA, Rupak MITRA, Girish MURALIDHARAN, Amitava PRAMANIK
  • Publication number: 20180117828
    Abstract: 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: Application
    Filed: February 16, 2016
    Publication date: May 3, 2018
    Applicant: Conopco, Inc., d/b/a UNILEVER
    Inventors: Somnath DAS, Girish MURALIDHARAN, Amitava PRAMANIK
  • Publication number: 20170209347
    Abstract: 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: Application
    Filed: July 16, 2015
    Publication date: July 27, 2017
    Applicant: Conopco, Inc., d/b/a UNILEVER
    Inventors: Somnath DAS, Satyaranjan GUPTA, Rupak MITRA, Girish MURALIDHARAN, Amitava PRAMANIK
  • Publication number: 20110232522
    Abstract: 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: Application
    Filed: November 25, 2009
    Publication date: September 29, 2011
    Inventors: Somnath Das, Amitava Pramanik, Srinivasa Raman, Arpita Sarkar
  • Publication number: 20100281624
    Abstract: 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: Application
    Filed: August 28, 2008
    Publication date: November 11, 2010
    Inventors: Somnath Das, Amitava Pramanik, Poulami Sengupta, Gopa Kumar Velayudhan Nair