Ruth Ellen HAHN

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Compositions and methods for pressure protection
- Patent number 11,802,236
- Issue date Oct 31, 2023
- Chevron U.S.A. Inc.
- Ruth Ellen Hahn
- E21 - EARTH DRILLING MINING
Information Patent Grant
Methods for pressure protection using a foamed pressure protection...
- Patent number 11,384,284
- Issue date Jul 12, 2022
- Chevron U.S.A. Inc.
- Ruth Ellen Hahn
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
COMPOSITIONS AND METHODS FOR PRESSURE PROTECTION
- Publication number 20230084576
- Publication date Mar 16, 2023
- Chevron U.S.A. Inc.
- Ruth Ellen HAHN
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
AQUEOUS FOAM COMPOSITIONS AND METHODS OF MAKING AND USING THEREOF
- Publication number 20220290031
- Publication date Sep 15, 2022
- Chevron U.S.A. Inc.
- Ruth Ellen HAHN
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Compositions and Methods for Pressure Protection
- Publication number 20210002544
- Publication date Jan 7, 2021
- Ruth Ellen HAHN
- E21 - EARTH DRILLING MINING