US Patent No: 7,214,648
Number of patents in Portfolio can not be more than 2000
Lubricant and additive formulation
Stats
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May 8, 2007
Issued date -
Jul 29, 2002
filing date -
10/208,715
serial no -
In Force
status
Importance
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Abstract
An engine lubricant formulated as a complete crankcase motor oil or additive concentrate composed of a combination of chemical constituents including a base oil selected from a synthetic oil, a mineral oil or semi-synthetic base oil (hydrogenated oil) or combination thereof, an oil soluble molybdenum additive, a dispersant inhibitor containing zinc dithiophosphate, and viscosity index improvers and one or more seal swelling agents to lubricate the engine and recondition the seals of new and/or high mileage engines. Addition of a polyalphaolefin and/or one or more esters such as a diester or polyolester may also be utilized therein. The lubricant may be formulated as a complete engine oil crankcase lubricant, or concentrated into an additive for addition to conventional mineral oil based engine oil, synthetic engine oils, or blends thereof in an effective amount of up to 30 percent volume percent, typically from 20 to 25 percent by volume.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 5,641,731 Motor oil performance-enhancing formulation | 26 | 1995 | |
| 5,962,377 Lubricant additive formulation | 9 | 1997 | |
| 6,034,038 Lubricant additive formulation | 11 | 1997 | |
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| 5,763,369 Motor oil performance-enhancing formulation | 12 | 1994 | |
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| 5,458,807 Engine oil composition | 12 | 1994 | |
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| 6,423,670 Lubricating oil compositions | 13 | 2001 | |
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| 5,739,088 Method of lubricating an alcohol-based fuel engine with an engine oil composition | 11 | 1994 | |
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| 5,629,272 Low phosphorous engine oil compositions and additive compositions | 23 | 1993 | |
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| 4,844,829 Methacrylate pour point depressants and compositions | 11 | 1988 | |
Patent Citation Ranking
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| Fee | Large entity fee | small entity fee | micro entity fee |
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