John S. Sperry

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for producing a high pressure thermal vapor st...
- Patent number 4,398,604
- Issue date Aug 16, 1983
- Carmel Energy, Inc.
- Richard W. Krajicek
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for controlling corrosion in thermal vapor injection gases
- Patent number 4,244,684
- Issue date Jan 13, 1981
- Carmel Energy, Inc.
- John S. Sperry
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for producing thermal vapor stream
- Patent number 4,156,421
- Issue date May 29, 1979
- Carmel Energy, Inc.
- Robert R. Cradeur
- E21 - EARTH DRILLING MINING
Information Patent Grant
Combustion chamber and thermal vapor stream producing apparatus and...
- Patent number 4,118,925
- Issue date Oct 10, 1978
- Carmel Energy, Inc.
- John S. Sperry
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Thermal process for recovering viscous petroleum
- Patent number 3,993,135
- Issue date Nov 23, 1976
- Carmel Energy, Inc.
- John S. Sperry
- E21 - EARTH DRILLING MINING
Information Patent Grant
Thermal injection process for recovery of heavy viscous petroleum
- Patent number 3,948,323
- Issue date Apr 6, 1976
- Carmel Energy, Inc.
- John S. Sperry
- E21 - EARTH DRILLING MINING