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Les Leszek Jackowski
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San Ramon, CA, US
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Patents Grants
last 30 patents
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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
Patents Applications
last 30 patents
Information
Patent Application
TREATING FLUID COMPRISING HYDROCARBONS, WATER, AND POLYMER
Publication number
20240067865
Publication date
Feb 29, 2024
Chevron U.S.A. Inc.
Sumitra SUBRAHMANYAN
E21 - EARTH DRILLING MINING
Information
Patent Application
PH CONTROL IN FLUID TREATMENT
Publication number
20230323193
Publication date
Oct 12, 2023
Chevron U.S.A. Inc.
Sujeewa S. PALAYANGODA
E21 - EARTH DRILLING MINING
Information
Patent Application
TREATING FLUID COMPRISING HYDROCARBONS, WATER, AND POLYMER
Publication number
20220145157
Publication date
May 12, 2022
Chevron U.S.A. Inc.
Sumitra Subrahmanyan
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
PH CONTROL IN FLUID TREATMENT
Publication number
20210395602
Publication date
Dec 23, 2021
Chevron U.S.A. Inc.
Sujeewa S. PALAYANGODA
E21 - EARTH DRILLING MINING
Information
Patent Application
TREATING FLUID COMPRISING HYDROCARBONS, WATER, AND POLYMER
Publication number
20200123889
Publication date
Apr 23, 2020
Chevron U.S.A. Inc.
Sumitra Subrahmanyan
E21 - EARTH DRILLING MINING