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United States Utility Patents
4,561,400 - 4,561,409
Previous 10 Next 10
| Number | | Title |
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4,561,400 |
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Method of controlling air-fuel ratio |
|
4,561,401 |
|
Air-fuel ratio control system |
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4,561,402 |
|
Method and system for internal combustion engine oxygen sensor heating control, synchronizing heater voltage detection with heater energization, and calculating power loss |
|
4,561,403 |
|
Air-fuel ratio control apparatus for internal combustion engines |
|
4,561,404 |
|
Fuel injection system for an engine |
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4,561,405 |
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Control of fuel injection apparatus for internal combustion engines |
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4,561,406 |
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Winged reentrant electromagnetic combustion chamber |
|
4,561,407 |
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Control equipment for a pressure wave supercharger |
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4,561,408 |
|
Motorized flow control valve |
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4,561,409 |
|
Self-cleaning smog control filter for internal combustion engines |
For U.S. patent law, rules, and procedures see MPEP.
Disclaimer. Information presented on this page while believed to be reliable, is provided "as is" with no warranties of its accuracy or timeliness. For legal advice seek help of a licensed professional.
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