John Shen

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Yardley, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Process for the multiple zone gasification of coal
- Patent number 4,099,933
- Issue date Jul 11, 1978
- Hydrocarbon Research, Inc.
- Clarence A. Johnson
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Pretreatment of coal-derived liquid to improve magnetic separation...
- Patent number 3,976,557
- Issue date Aug 24, 1976
- Hydrocarbon Research, Inc.
- John Shen
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...