| Patents for H01T 13 - Sparking plugs (7,441) |
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| 03/01/2000 | EP0982820A1 Spark plug, alumina insulator for spark plug, and method of manufacturing the same |
| 03/01/2000 | EP0981759A1 Measuring device for electrically decoupled function testing of working systems |
| 02/23/2000 | CN1245356A Sparking plug and producing method thereof |
| 02/23/2000 | CN1049769C Multi-polarity type spark plug for use in internal combustion engine |
| 02/23/2000 | CN1049768C Adapter feeding apparatus |
| 02/17/2000 | WO2000008317A1 Device and method for igniting an internal combustion engine and corresponding separating wall |
| 02/10/2000 | WO2000007270A1 Spark plug for an internal combustion engine |
| 02/01/2000 | US6019077 Spark plug for internal combustion engine |
| 01/27/2000 | WO2000003896A1 Method and circuit for monitoring a primer circuit in the safety system of a vehicle |
| 01/27/2000 | DE19833316A1 Spark plug for use in internal combustion engines has a center electrode coupled to a temperature resistant wound resistor |
| 01/26/2000 | EP0975075A2 A method for producing a spark plug |
| 01/26/2000 | EP0975074A1 Sintered ceramic body for spark plug, process for preparing the same and spark plug |
| 01/26/2000 | CN2361015Y Three-polar pin spark plug |
| 01/20/2000 | WO2000003465A1 Spark plug electrode having iridium based sphere and method for manufacturing same |
| 01/20/2000 | WO2000003464A1 Spark plug tip having platinum based alloys |
| 01/20/2000 | WO2000003463A1 Wear-resistant spark plug electrode tip containing platinum alloys, spark plug containing the wear-resistant tip, and method of making same |
| 01/20/2000 | DE19832019A1 Trigger circuit monitoring method for safety device in vehicle e.g. airbag, belt tightener, measuring charge-time for RC trigger circuit, computing and comparing its voltages to ensure readiness to operate in crash situation |
| 01/20/2000 | CA2337232A1 Spark plug tip having platinum based alloys |
| 01/19/2000 | CN2359821Y High-voltage ignition coil of sparking plug for motor vehicle |
| 01/19/2000 | CN1241681A Inflated ion device as new-generation ignition plug for internal combustion engine |
| 01/13/2000 | DE19932220A1 Spark plug for use in internal combustion engine |
| 01/12/2000 | CN1048360C Improved spark plug system |
| 01/11/2000 | US6013973 Spark plug having a sub-combustion chamber for use in fuel ignition systems |
| 01/06/2000 | WO2000001047A1 Corona wind spark plug |
| 01/06/2000 | WO2000000652A1 Spark plug electrode alloy |
| 01/05/2000 | EP0969575A1 Spark plug |
| 01/05/2000 | EP0969204A2 Method and device for the determination of the breakdown voltage in the ignition of an internal-combustion engine |
| 01/05/2000 | DE19829443A1 Zündkerze Spark plug |
| 12/30/1999 | DE19828168A1 Applying ceramic layer onto ceramic green body for forming sliding-discharge spark plug |
| 12/22/1999 | CN2355477Y Durable power spark plug |
| 12/16/1999 | WO1999065131A1 Energy storage system |
| 12/16/1999 | WO1999065100A1 Redox gel battery |
| 12/16/1999 | CA2333048A1 Redox gel battery |
| 12/16/1999 | CA2333043A1 Energy storage system |
| 12/15/1999 | EP0964490A2 Spark plug |
| 12/09/1999 | DE19925672A1 Sparking plug for an internal combustion engine, and method for its manufacture |
| 12/09/1999 | DE19814933A1 Spark plug cap for a spark plug |
| 12/08/1999 | EP0963018A1 Spark plug |
| 12/07/1999 | US5998913 Spark plug with iridium-rhodium alloy discharge portion |
| 12/07/1999 | US5998912 Spark plug |
| 12/01/1999 | EP0961373A1 Spark plug |
| 12/01/1999 | CN1237021A Spark plug |
| 12/01/1999 | CN1047032C Sparking-plug for internal combustion engine |
| 11/30/1999 | US5992364 Internal combustion engine with direct fuel injection |
| 11/25/1999 | DE19922925A1 Spark plug with iridium alloy contacts and associated nickel alloy electrode sections |
| 11/24/1999 | EP0959542A1 Spark plug and method of manufacturing the same |
| 11/24/1999 | CN1236494A Computer-controlled internal combustion engine equipped with spark plugs |
| 11/23/1999 | US5990602 Internal combustion engines; insulators, housing, electrode |
| 11/18/1999 | WO1999050631A3 Apparatus and method for testing an ignition coil and spark plug |
| 11/17/1999 | CN1235398A Durable spark plug |
| 11/17/1999 | CN1046570C Structure for connecting spark plug and ignition coil for IC engine |
| 11/16/1999 | US5985473 Firing; spark plug insulators |
| 11/16/1999 | US5984668 Sparking device for promoting avoidance of short-circuiting |
| 11/10/1999 | EP0719469B1 Sparking plug with surface discharge section |
| 11/10/1999 | CN2348508Y Multi-functional sparking-plug |
| 11/09/1999 | US5982080 Spark plug and its manufacturing method |
| 11/09/1999 | US5982079 Spark plug with a looped ground electrode concentrically disposed to a center electrode |
| 11/09/1999 | US5981904 Tandem cathodic cleaning device for wire |
| 11/09/1999 | US5980345 Spark plug electrode having iridium based sphere and method for manufacturing same |
| 11/09/1999 | US5979422 Ignition rail with sealed movable connections |
| 11/09/1999 | US5979387 Quick replacement spark plug assembly |
| 11/09/1999 | US5979049 Automotive spark plug cover |
| 11/04/1999 | WO1999056363A1 Spark plug for an internal combustion engine |
| 11/04/1999 | WO1999056362A1 Insulator shield for spark plug |
| 11/03/1999 | EP0954074A2 Spark plug and process for fabricating the spark plug |
| 11/02/1999 | US5977695 Spark plug having improved consumption resistance |
| 11/02/1999 | US5975926 Metal shield for a plug connection |
| 10/28/1999 | DE19818214A1 Spark plug for combustion engine |
| 10/28/1999 | DE19817657A1 Spark plug connector for engine of hand-guided working machine |
| 10/27/1999 | EP0952647A1 Spark plug for combustion engine resp. sensor element for inflammation- and combustion process |
| 10/27/1999 | CN1046016C Ignition coil device |
| 10/26/1999 | US5973443 Spark plug electrode tip for internal combustion engine |
| 10/26/1999 | US5971776 Adjustable spark plug boot |
| 10/21/1999 | DE19817391A1 Zündkerze für eine Brennkraftmaschine bzw. Sensorelement für Entflammungs- und Verbrennungsvorgang Spark plug for an internal combustion engine or sensor element for flammability and combustion process |
| 10/20/1999 | CN2344900Y Non-carbon sparking plug |
| 10/20/1999 | CN2344899Y Sparking plug electrode connection structure |
| 10/19/1999 | US5969466 Performance spark plug |
| 10/19/1999 | US5967122 Computer-controlled internal combustion engine equipped with spark plugs |
| 10/13/1999 | CN2343690Y Inhibitor for sparking plug cap of motorcycle |
| 10/12/1999 | CA2011359C Ignition plug socket |
| 10/07/1999 | WO1999050631A2 Apparatus and method for testing an ignition coil and spark plug |
| 10/07/1999 | DE19829583C1 Breakthrough voltage determining method for AC ignition system diagnosis in IC engine |
| 10/05/1999 | US5962957 Spark plug for internal combustion engine |
| 09/29/1999 | EP0944940A1 Spark plug |
| 09/28/1999 | US5957706 Ignition cable terminal assembly |
| 09/22/1999 | EP0943083A1 Method and apparatus for inspecting spark plug while spark plug is installed in engine |
| 09/22/1999 | CN2340105Y Multi-spark ignition plug |
| 09/21/1999 | US5955827 Spark plug with replaceable ground electrode |
| 09/21/1999 | US5955826 Spark plug with built-in pressure sensor |
| 09/16/1999 | DE19821550C1 Cylinder head for high performance multi-cylinder i.c. engine |
| 09/15/1999 | CN2338895Y High voltage booster sparking-plug |
| 09/14/1999 | US5952770 Spark plug for internal combustion engine |
| 09/14/1999 | US5952769 Method for coating sparkplugs |
| 09/14/1999 | US5951308 Ignition terminal with welded barrel beam |
| 09/14/1999 | US5950585 Used in a cylinder of a gasoline combustion engine |
| 09/14/1999 | US5950584 Spark plug for forming a spark to jump between two electrodes |
| 09/10/1999 | WO1999045615A1 Spark plug providing improved operating characteristics |
| 09/08/1999 | EP0940896A1 Equipment and method for producing spark plug |
| 09/08/1999 | CN1227982A Equipment and method for producing spark plug |
| 09/07/1999 | US5949319 Bar coil for ignition systems |