Gerald B. Hoekstra deceased

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late of South Holland, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
In situ retorting of oil shale with pulsed combustion
- Patent number 4,436,344
- Issue date Mar 13, 1984
- Standard Oil Company (Indiana)
- John M. Forgac
- E21 - EARTH DRILLING MINING
Information Patent Grant
Ignition procedure and process for in situ retorting of oil shale
- Patent number 4,425,967
- Issue date Jan 17, 1984
- Standard Oil Company (Indiana)
- Gerald B. Hoekstra
- E21 - EARTH DRILLING MINING
Information Patent Grant
Fluid bed retorting process with multiple feed lines
- Patent number 4,415,433
- Issue date Nov 15, 1983
- Standard Oil Company (Indiana)
- Gerald B. Hoekstra
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
In situ retorting of oil shale
- Patent number 4,353,418
- Issue date Oct 12, 1982
- Standard Oil Company (Indiana)
- Gerald B. Hoekstra
- E21 - EARTH DRILLING MINING
Information Patent Grant
Process for hydroprocessing heavy hydrocarbon feedstocks in a pipe...
- Patent number 3,933,620
- Issue date Jan 20, 1976
- Standard Oil Company
- Leonard W. Russum
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL