LandOfFree - US Patents - Listing for Electric lamp and discharge devices,Spark plugs,Shaped electrode chamber, insulator end, shell skirt, baffle...

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...

Spark plug and method of manufacturing the same

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...

Spark plug casing and spark plug having the spark plug casing

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...

Spark plug element having defined dimensional parameters for...

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...

Spark plug for an internal combustion engine

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...

Spark plug for an internal combustion engine

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...

Spark plug for an internal combustion engine

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...

Spark plug having a metallic shell with defined relationship...

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...

Spark plug having a reduced lead glaze layer on the...

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...

Spark plug having a sub-combustion chamber for use in fuel ignit

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...

Spark plug having an ablative coating for anticontaminat fouling

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...

Spark plug having an internal conductor configuration

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...

Spark plug having an oil film on an intermediate portion of...

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...

Spark plug having ground electrode and intermediate...

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...

Spark plug having spark portion provided with a base...

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...

Spark plug having vanadium oxide islands on central insulator

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...

Spark plug including ground elcetrode carrier casing

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...

Spark plug structure for improved ignitability

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...

Spark plug with a plurality of ground electrodes

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...

Spark plug with a stepped insulator and an inner constriction in