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Subhasis Bhattacharya

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  • Walnut Creek, CA, US
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    BASE OIL PRODUCTION USING UNCONVERTED OIL
    • Publication number 20240301300
    • Publication date Sep 12, 2024
    • Chevron U.S.A. Inc.
    • Viorel DUMA
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    METHOD FOR PRODUCING HIGH QUALITY BASE OILS USING TWO STAGE HYDROFI...
    • Publication number 20240076564
    • Publication date Mar 7, 2024
    • Chevron U.S.A. Inc.
    • Yihua ZHANG
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    PROCESS AND SYSTEM FOR BASE OIL PRODUCTION
    • Publication number 20230348798
    • Publication date Nov 2, 2023
    • Chevron U.S.A. Inc.
    • Subhasis BHATTACHARYA
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    IMPROVED PRODUCTION OF HEAVY API GROUP II BASE OIL
    • Publication number 20170066979
    • Publication date Mar 9, 2017
    • Chevron U.S.A. Inc.
    • Guan-Dao Lei
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    METHOD FOR MAKING MIDDLE DISTILLATES AND A HEAVY VACUUM GAS OIL FCC...
    • Publication number 20150136645
    • Publication date May 21, 2015
    • Chevron U.S.A. Inc.
    • Subhasis Bhattacharya
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    TWO-STAGE HYDROCRACKING PROCESS FOR MAKING HEAVY LUBRICATING BASE O...
    • Publication number 20150068952
    • Publication date Mar 12, 2015
    • Chevron U.S.A. Inc.
    • Subhasis Bhattacharya
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    SOLVENT-ENHANCED BIOMASS LIQUEFACTION
    • Publication number 20140371496
    • Publication date Dec 18, 2014
    • Chevron U.S.A. Inc.
    • James Floyd STEVENS
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    SOLVENT-ENHANCED BIOMASS LIQUEFACTION
    • Publication number 20120005949
    • Publication date Jan 12, 2012
    • James STEVENS
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    SELECTIVE STAGING HYDROCRACKING
    • Publication number 20100200459
    • Publication date Aug 12, 2010
    • Chevron U.S.A. Inc.
    • Subhasis Bhattacharya
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    Targeted hydrogenation hydrocracking
    • Publication number 20090159493
    • Publication date Jun 25, 2009
    • Chevron U.S.A. Inc.
    • Subhasis Bhattacharya
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL