| Patents for H01T 21 - Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs (1,750) |
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| 03/31/2011 | WO2011036832A1 Spark plug and process for producing spark plug |
| 03/29/2011 | US7914353 Spark plug and method for manufacturing the same |
| 03/17/2011 | WO2011030503A1 Spark plug |
| 03/08/2011 | US7901262 Spark plug manufacturing method ensuring accurate and effective adjustment of spark gap |
| 03/03/2011 | WO2011024548A1 Spark plug for internal combustion engine and method for manufacturing same |
| 03/01/2011 | US7896720 Method of producing spark plug, and spark plug |
| 02/24/2011 | US20110045731 Method of producing a spark plug |
| 02/24/2011 | US20110043094 Spark plug, and method for manufacturing the same |
| 02/17/2011 | US20110037372 Spark ignition device with in-built combustion sensor |
| 02/17/2011 | US20110037370 Spark plug including electrodes with low swelling rate and high corrosion resistance |
| 02/09/2011 | EP1573873B1 Method for the production of electrodes used for high-performance spark plugs |
| 02/08/2011 | US7884792 Method of extracting optimized digital variable resistor value and system using the same |
| 02/03/2011 | WO2011013287A1 Manufacturing apparatus and manufacturing method for sparkplugs |
| 02/02/2011 | EP2279546A2 Ceramic spark plug insulator and method of making |
| 01/26/2011 | EP2278671A1 Method of manufacturing spark plug |
| 01/26/2011 | CN101958513A Manufacturing method of gas spark switch electrode holder |
| 01/20/2011 | US20110012498 Spark plug including high temperature performance electrode |
| 01/19/2011 | EP2276126A1 Insulator for spark plug, process for producing the insulator, spark plug, and process for producing the spark plug |
| 01/19/2011 | CN101950928A Central electrode conveying and loading device |
| 01/19/2011 | CN101950927A Assembling device of screw stems |
| 01/18/2011 | US7872405 Low cost spark plug manufactured from conductive loaded ceramic-based materials |
| 01/13/2011 | WO2011004526A1 Spark plug for internal combustion engine and method for producing the same |
| 01/06/2011 | WO2011001656A1 Spark plug and process for producing spark plug |
| 12/29/2010 | EP2267851A2 Spark plug and method of manufacturing the same |
| 12/23/2010 | US20100320893 Spark plug and method of manufacturing the same |
| 12/22/2010 | CN101920688A Protection system for use with airbag inflators and initiators |
| 12/07/2010 | US7847472 Spark plug having noble metal tip |
| 12/02/2010 | DE19925672B4 Zündkerze Spark plug |
| 11/23/2010 | USRE41944 Method for manufacturing noble metal electric discharge chips for spark plugs |
| 11/18/2010 | US20100289397 Spark plug for internal-combustion engine and method for manufacturing the same |
| 11/11/2010 | WO2010128603A1 Spark plug for internal combustion engine and method of manufacturing same |
| 11/03/2010 | CN101878569A Static electricity countermeasure component and method for manufacturing the static electricity countermeasure component |
| 10/28/2010 | US20100273385 Spark plug electrode and process for making |
| 10/21/2010 | US20100264803 Spark plug for internal combustion engine and method for manufacturing spark plug |
| 10/21/2010 | US20100264802 Spark plug and process for producing the spark plug |
| 10/21/2010 | US20100264801 Spark plug and process for producing the spark plug |
| 10/20/2010 | CN101868893A Spark plug for internal combustion engine and method of manufacturing spark plug |
| 10/20/2010 | CN101868892A Spark plug |
| 10/20/2010 | CN101866731A Polymeric housed arrester and method for preparing no-local-discharge compound-glass fiber winding pipe |
| 10/14/2010 | US20100259154 Spark plug for internal combustion engine and manufacturing method thereof |
| 10/13/2010 | CN101861685A 内燃机用火花塞 Internal combustion engines with spark plugs |
| 10/13/2010 | CN101859984A Spark plug for internal-combustion engine and manufacturing method thereof |
| 10/07/2010 | WO2010113404A1 Method of manufacturing sparkplugs |
| 10/06/2010 | CN1472854B Spark plug and manufacture thereof |
| 09/30/2010 | US20100244651 Spark ignition device with bridging ground electrode and method of construction thereof |
| 09/22/2010 | CN101842948A Ignition device having an induction welded and laser weld reinforced firing tip and method of construction |
| 09/16/2010 | WO2010103790A1 Spark plug for internal combustion engine and method of manufacturing same |
| 09/16/2010 | US20100233929 Method of manufacturing spark plug |
| 09/09/2010 | US20100223973 Method of producing metallic shell for spark plug |
| 09/08/2010 | CN101823117A Method of producing metallic shell for spark plug and die for producing the metallic shell |
| 09/07/2010 | US7789725 Manufacture of light-emitting panels provided with texturized micro-components |
| 09/01/2010 | EP2224560A2 Insulating member for spark plug and method of manufacturing the same, and spark plug for internal combustion engine |
| 08/26/2010 | US20100213812 Spark plug for internal combustion engines and method for manufacturing the spark plug |
| 08/25/2010 | CN101814702A Insulator for the spark plug and the manufacturing approach thereof, together with the spark plug |
| 08/12/2010 | WO2010089992A1 Method for measuring deviation of connecting position of member, method for producing spark plug |
| 08/12/2010 | US20100203791 Method for manufacturing spark plug |
| 08/12/2010 | US20100201245 Spark plug having a plastic upper insulator and method of construction |
| 08/11/2010 | EP2216863A2 Method for manufacturing spark plug |
| 08/11/2010 | CN101800400A Method for manufacturing spark plug |
| 08/04/2010 | EP2214277A1 Deflection inspecting device for spark plug insulator, deflection inspecting method for spark plug insulator, and manufacturing method for spark plug insulator |
| 08/04/2010 | EP2214276A1 Method of manufacturing spark plug |
| 08/04/2010 | EP2214275A1 Spark plug |
| 08/04/2010 | EP2214274A1 Spark plug for internal combustion engine and method of manufacturing spark plug |
| 08/04/2010 | CN1665087B Spark plug and method for manufacturing the same |
| 07/29/2010 | US20100187967 Spark plug electrode and method of making |
| 07/28/2010 | EP2211432A1 Spark plug for internal combustion engine |
| 07/07/2010 | CN101772870A Spark plug for internal combustion engine and method of producing the same |
| 06/23/2010 | CN101752794A Control method of consistency and stability of firing voltage of ignition discharge tube |
| 06/22/2010 | US7741762 Dual-spark pre-chambered spark igniter |
| 06/22/2010 | US7740513 Method and device for manufacturing a noble metal armored electrode for a sparking plug |
| 06/17/2010 | US20100148653 Alumina-based sintered body for spark plug and method of manufacturing the same, and spark plug and method of manufacturing the same |
| 06/10/2010 | DE112008002062T5 Zündkerze für eine Brennkraftmaschine und Verfahren zum Herstellen derselben A spark plug for an internal combustion engine and method of manufacturing the same |
| 06/09/2010 | EP2193582A2 Ignition device having an induction welded and laser weld reinforced firing tip and method of construction |
| 06/03/2010 | WO2010061550A1 Esd protection device and manufacturing method thereof |
| 06/03/2010 | US20100136867 Spark plug and method for manufacturing spark plug |
| 06/03/2010 | US20100133977 Spark plug and manufacturing method thereof |
| 05/26/2010 | EP2190083A1 Static electricity countermeasure component and method for manufacturing the static electricity countermeasure component |
| 05/26/2010 | EP1576707B1 Ignition device having an electrode formed from an iridium-based alloy |
| 05/19/2010 | EP2187489A1 Spark plug and its manufacturing method |
| 05/14/2010 | WO2010053116A1 Spark plug and manufacturing method therefor |
| 05/13/2010 | US20100115721 Engine cleaning system and method for cleaning carbon deposits in engines |
| 05/12/2010 | CN1650491B Method for detecting projecting adherend and method for producing super plug using said method |
| 05/06/2010 | US20100109502 Spark plug manufacturing method, and spark plug |
| 05/06/2010 | DE10053173B4 Herstellungsverfahren für eine Zündkerze mit einem Edelmetallstück für einen Verbrennungsmotor Manufacturing method of a spark plug having a noble metal chip for an internal combustion engine |
| 04/28/2010 | CN1627578B 火花塞 Spark Plug |
| 04/22/2010 | WO2010044249A1 Spark plug and method for the manufacture thereof |
| 04/22/2010 | WO2010044238A1 Spark plug and manufacturing method thereof |
| 04/22/2010 | WO2010044236A1 Spark plug and manufacturing method thereof |
| 04/15/2010 | WO2010041599A1 Method for manufacturing spark plug and device for manufacturing spark plug |
| 04/15/2010 | WO2010041379A1 Method for manufacturing spark plug and device for manufacturing spark plug |
| 04/15/2010 | US20100093246 Deflection inspecting device for spark plug insulator, deflection inspecting method for spark plug insulator, and manufacturing method for spark plug insulator |
| 04/15/2010 | DE102009038136A1 Verfahren zur Herstellung einer Zündkerze A method for manufacturing a spark plug |
| 04/08/2010 | DE102006019927B4 Zündkerze Spark plug |
| 03/31/2010 | CN101689753A Spark plug and its manufacturing method |
| 03/31/2010 | CN101689752A igniter |
| 03/04/2010 | US20100052500 Spark plug and methods of construction thereof |
| 03/04/2010 | US20100052499 Composite ceramic electrode, ignition device therewith and methods of construction thereof |
| 03/04/2010 | US20100052497 Ceramic electrode, ignition device therewith and methods of construction thereof |
| 03/04/2010 | DE102009035066A1 Ionisator mit Mechanismus zum Reinigen von Entladungselektroden Ionizer mechanism for cleaning of discharge electrodes |
| 02/25/2010 | US20100048083 Method of manufacturing spark plug |