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Leszek Lewkowicz
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Edmonton, CA
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last 30 patents
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Patent Grant
Hydrocracking process involving colloidal catalyst formed in situ
Patent number
5,578,197
Issue date
Nov 26, 1996
Alberta Oil Sands Technology and Research Authority
Theodore Cyr
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Patent Grant
Method for extending hydroconversion catalyst life
Patent number
5,124,024
Issue date
Jun 23, 1992
Nova Husky Research Corporation
Andrzej Krzywicki
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL