Benjamin S. Santos

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Fremont, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Process to refine petroleum residues and sludges into asphalt and/o...
- Patent number 5,922,189
- Issue date Jul 13, 1999
- Benjamin Santos
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Process for re-refining used oil
- Patent number 5,514,272
- Issue date May 7, 1996
- Benjamin S. Santos
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Process for converting acid sludge to intermediate sludge and soft...
- Patent number 5,470,455
- Issue date Nov 28, 1995
- Benjamin S. Santos
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Process for converting acid sludge to intermediate sludge
- Patent number 5,288,392
- Issue date Feb 22, 1994
- Benjamin S. Santos
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...