JAMES S. HANSON

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RENO, NV, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for obtaining bitumen from tar sands
- Patent number 7,909,989
- Issue date Mar 22, 2011
- Marathon Oil Canada Corporation
- Willem P. C. Duyvesteyn
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Extraction of bitumen from bitumen froth generated from tar sands
- Patent number 6,007,709
- Issue date Dec 28, 1999
- BHP Minerals International Inc.
- William P. C. Duyvesteyn
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...

Patents Applicationslast 30 patents

Information Patent Application
Method for obtaining bitumen from tar sands
- Publication number 20060076274
- Publication date Apr 13, 2006
- The Technology Store, Inc.
- Willem P.C. Duyvesteyn
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
RECOVERY OF NICKEL AND COBALT FROM ORE
- Publication number 20010001650
- Publication date May 24, 2001
- William P.C. Duyvesteyn
- WILLEM P. C. DUYVESTEYN
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...