Patents by Inventor Rupak MITRA

Rupak MITRA 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: 11872296
    Abstract: A preservation system comprising: i. itaconic acid or salt thereof and ii. an aromatic alcohol selected from the group consisting of ethylvanillin, eugenol, thymol, P-hydroxybenzaldehyde, 4n butyl phenol, P-hydroxyacetophenone, vanillin, salicylic acid or salt thereof, o-cymen-5-ol, carvacrol and mixtures thereof.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: January 16, 2024
    Assignee: CONOPCO, INC.
    Inventors: Stuart Campbell-Lee, Rupak Mitra, Thomas Richard Pointon, Ian Peter Stott
  • Patent number: 11684557
    Abstract: An antimicrobial preservation system comprising: i. itaconic acid or salt thereof and ii. benzoic acid or salt thereof.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: June 27, 2023
    Assignee: CONOPCO, INC.
    Inventors: Stuart Campbell-Lee, Rupak Mitra, Thomas Richard Pointon, Ian Peter Stott
  • Patent number: 11642294
    Abstract: An antimicrobial preservation system comprising: i. itaconic acid or salt thereof and ii. benzoic acid or salt thereof.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: May 9, 2023
    Assignee: CONOPCO, INC.
    Inventors: Stuart Campbell-Lee, Rupak Mitra, Thomas Richard Pointon, Ian Peter Stott
  • Patent number: 11490618
    Abstract: A preservation system comprising: i) itaconic acid or salt thereof and ii) a secondary preservation chemical selected from the list consisting of terpineol, geraniol, perillyl alcohol, menthol, terpinene, linalool, citronellol and mixtures thereof.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: November 8, 2022
    Assignee: Conopco, Inc.
    Inventors: Stuart Campbell-Lee, Rupak Mitra, Thomas Richard Pointon, Ian Peter Stott
  • Publication number: 20220287936
    Abstract: Disclosed is an antidandruff composition comprising synergistic combination of itaconic acid or an ester thereof and a benzoic acid or a salt thereof in specific ratio ranges. The composition may be used for personal cleansing and is especially preferred to be delivered as a shampoo or hair conditioner.
    Type: Application
    Filed: July 24, 2020
    Publication date: September 15, 2022
    Inventors: Vinitha KADAMKODE, Rupak MITRA
  • Publication number: 20220280401
    Abstract: Disclosed is an antidandruff composition comprising low amounts of piroctone olamine which synergistically interacts with benzoic acid or a salt thereof and itaconic acid or an ester thereof. The composition may be used for personal cleansing and is especially preferred to be delivered as a shampoo or hair conditioner.
    Type: Application
    Filed: July 24, 2020
    Publication date: September 8, 2022
    Inventors: Vinitha KADAMKODE, Rupak MITRA
  • Publication number: 20220192951
    Abstract: The present invention relates to combination of actives that provides synergistic preservative action especially for use in personal care compositions. The preservative system comprises a combination of sodium benzoate and a second active selected from benzhydroxamic acid or tricarballylic acid.
    Type: Application
    Filed: February 10, 2020
    Publication date: June 23, 2022
    Applicant: CONOPCO, Inc., d/b/a UNILEVER
    Inventors: Vinitha KADAMKODE, Rupak MITRA, Thomas Rchard POINTON, Ian Peter STOTT
  • 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: 20210307324
    Abstract: A preservation system comprising: i) itaconic acid or salt thereof and ii) a secondary preservation chemical selected from the list consisting of terpineol, geraniol, perillyl alcohol, menthol, terpinene, linalool, citronellol and mixtures thereof.
    Type: Application
    Filed: May 20, 2019
    Publication date: October 7, 2021
    Inventors: Stuart CAMPBELL-LEE, Rupak MITRA, Thomas Richard POINTON, Ian Peter STOTT
  • Publication number: 20210251863
    Abstract: An antimicrobial preservation system comprising: i. itaconic acid or salt thereof and ii. benzoic acid or salt thereof.
    Type: Application
    Filed: May 20, 2019
    Publication date: August 19, 2021
    Inventors: Stuart CAMPBELL-LEE, Rupak MITRA, Thomas Richard POINTON, Ian Peter STOTT
  • Publication number: 20210205194
    Abstract: A preservation system comprising: i. itaconic acid or salt thereof and ii. an aromatic alcohol selected from the group consisting of ethylvanillin, eugenol, thymol, P-hydroxybenzaldehyde, 4n butyl phenol, P-hydroxyacetophenone, vanillin, salicylic acid or salt thereof, o-cymen-5-ol, carvacrol and mixtures thereof.
    Type: Application
    Filed: May 20, 2019
    Publication date: July 8, 2021
    Inventors: Stuart CAMPBELL-LEE, Rupak MITRA, Thomas Richard POINTON, Ian Peter STOTT
  • 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
  • Publication number: 20190387743
    Abstract: Disclosed is a composition comprising: (i) a composite antimicrobial particulate material comprising an oligodynamic metal embedded in a water-insoluble inorganic carrier; and, (ii) at least one of thymol or terpineol or a mixture thereof. The composition is useful for sanitising an animate or inanimate surface by reducing bacterial count of at least one Gram-positive or Gram-negative bacterium on said surface by 1 to 5 log within a contact time of 10 to 30 seconds.
    Type: Application
    Filed: November 11, 2017
    Publication date: December 26, 2019
    Inventors: Amit CHAKRABORTTY, Rupak MITRA, Sayandip MUKHERJEE, Samarpita SARKAR
  • 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: 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