Les Leszek Jackowski

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San Ramon, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Ph control in fluid treatment
- Patent number 12,215,276
- Issue date Feb 4, 2025
- 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 11,834,606
- 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 Applicationslast 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