TREA

Sumitra Subrahmanyan

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  • Houston, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Treating fluid comprising hydrocarbons, water, and polymer
    • Patent number 11,834,606
    • Issue date Dec 5, 2023
    • Chevron U.S.A. Inc.
    • Sumitra Subrahmanyan
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    PH control in fluid treatment
    • Patent number 11,591,893
    • Issue date Feb 28, 2023
    • Chevron U.S.A. Inc.
    • Sujeewa S. Palayangoda
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Treating fluid comprising hydrocarbons, water, and polymer
    • Patent number 11,242,739
    • Issue date Feb 8, 2022
    • Chevron U.S.A. Inc.
    • Sumitra Subrahmanyan
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Polymer compositions
    • Patent number 9,909,053
    • Issue date Mar 6, 2018
    • Chevron U.S.A. Inc.
    • Varadarajan Dwarakanath
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Polymer compositions
    • Patent number 9,902,895
    • Issue date Feb 27, 2018
    • Chevron U.S.A. Inc.
    • Varadarajan Dwarakanath
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Polymer compositions
    • Patent number 9,902,894
    • Issue date Feb 27, 2018
    • Chevron U.S.A. Inc.
    • Varadarajan Dwarakanath
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Polymer compositions
    • Patent number 9,896,617
    • Issue date Feb 20, 2018
    • Chevron U.S.A. Inc.
    • Varadarajan Dwarakanath
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Compacted pelletized additive blends containing a polymer carrier
    • Patent number 9,630,349
    • Issue date Apr 25, 2017
    • Ingenia Polymers, Inc.
    • Ananda M. Chatterjee
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents