| 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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| 10/03/2013 | WO2013146324A1 Esd protection device and production method therefor |
| 09/26/2013 | WO2013142398A1 Corona ignition device with improved electrical performance |
| 09/26/2013 | WO2013141966A1 Spark ignition device and ground electrode therefor and methods of construction thereof |
| 09/25/2013 | CN103329370A Manufacturing method for spark plug |
| 09/19/2013 | DE112011104429T5 Prüfvorrichtung für einen zu prüfenden Artikel, Zündkerzenprüfverfahren und Verfahren zum Herstellen einer Zündkerze Device for testing an item to be inspected, spark plug test methods and processes for making a spark plug |
| 09/18/2013 | CN102474080B Spark plug and process for producing spark plug |
| 09/18/2013 | CN102299485B ESD protection device and producing method thereof |
| 09/12/2013 | US20130234580 Spark plug with ground electrode plateau and method of making the same |
| 09/11/2013 | CN102611004B Surge absorption tube and manufacturing method thereof |
| 09/11/2013 | CN102394473B 火花塞及其制造方法 And a method of manufacturing the spark plug |
| 09/04/2013 | EP2633593A2 Non-thermal plasma ignition arc suppression |
| 09/03/2013 | US8523624 Spark plug for internal combustion engine and manufacturing method thereof |
| 08/29/2013 | WO2013126319A1 Laser welded spark plug electrode and method of forming the same |
| 08/29/2013 | US20130225029 Method and device for manufacturing spark plug |
| 08/29/2013 | US20130221832 Spark plug for internal combustion engine and method for manufacturing same |
| 08/29/2013 | US20130221831 Laser welded spark plug electrode and method of forming the same |
| 08/27/2013 | US8519606 Spark plug for internal combustion engine and method of manufacturing spark plug |
| 08/27/2013 | US8517786 Method of producing a spark plug |
| 08/21/2013 | EP2628220A1 Short-circuit prevention in an rf spark plug |
| 08/21/2013 | CN103261676A Corona ignition device having asymmetric firing tip |
| 08/14/2013 | DE112011103855T5 Verfahren und Vorrichtung zur Herstellung einer Zündkerze Method and apparatus for manufacturing a spark plug |
| 08/14/2013 | DE112011103796T5 Zündkerze Spark plug |
| 08/14/2013 | CN103250311A Short-circuit prevention in an RF spark plug |
| 08/14/2013 | CN103247937A Spark plug side electrode and manufacturing method thereof |
| 08/13/2013 | US8506341 Method of manufacturing sparkplugs |
| 08/08/2013 | US20130200774 Spark plug and manufacturing method therefor |
| 08/07/2013 | EP2624384A1 Spark plug |
| 08/07/2013 | EP2624382A1 Spark plug and manufacturing method for same |
| 08/01/2013 | WO2013112462A1 Method of forming a spark plug |
| 08/01/2013 | US20130196563 Method of forming a spark plug |
| 08/01/2013 | US20130194711 Surge absorber and method for producing the same |
| 08/01/2013 | US20130193834 Method of manufacturing a spark plug having electrode cage secured to the shell |
| 08/01/2013 | US20130193833 Spark plug |
| 07/31/2013 | EP2621038A2 Method of producing an electrode support using brazing |
| 07/31/2013 | EP2621037A2 Method of producing a spark gap for an electrode support using sacrificial material |
| 07/31/2013 | EP2621034A1 Method of manufacturing electrode complex for forming electrode of spark-plug, and method of manufacturing spark plug |
| 07/25/2013 | US20130187530 Method of producing an electrode support using brazing |
| 07/24/2013 | CN103222139A Method and device for manufacturing spark plug |
| 07/24/2013 | CN103222138A 火花塞 Spark plug |
| 07/18/2013 | US20130181597 Spark plug electrode, method for producing same, spark plug, and method for producing spark plug |
| 07/18/2013 | US20130181596 Spark plug electrode, method for producing same, spark plug, and method for producing spark plug |
| 07/17/2013 | CN103210556A Corona igniter with improved corona control |
| 07/17/2013 | CN102332682B 火花塞及其制造方法 A spark plug and a manufacturing method |
| 07/16/2013 | US8485857 Method of producing a spark gap for an electrode support using sacrificial material |
| 07/11/2013 | WO2013102514A1 Injection molding tool and method for producing a ceramic component |
| 07/11/2013 | WO2013102513A1 Method and tool for producing a hollow cylindrical ceramic component |
| 07/11/2013 | US20130175922 Spark plug and manufacturing method for same |
| 07/10/2013 | CN101823117B Method of producing metallic shell for spark plug and die for producing the metallic shell |
| 07/04/2013 | DE102012200046A1 Verfahren und Werkzeug zur Herstellung eines hohlzylindrischen Keramikbauteils A method and tool for producing a hollow-cylindrical ceramic component |
| 07/04/2013 | DE102012200045A1 Spritzgusswerkzeug und Verfahren zur Herstellung eines Keramikbauteils Injection mold and method for manufacturing a ceramic component |
| 07/03/2013 | CN103190045A Corona igniter having improved gap control |
| 07/02/2013 | US8476815 Spark plug and manufacturing method thereof |
| 06/26/2013 | CN102598441B Spark plug for internal combustion engine and method for manufacturing same |
| 06/25/2013 | US8469759 Method of manufacturing spark plug |
| 06/25/2013 | US8469758 Insulator for spark plug, and method for manufacturing spark plug |
| 06/20/2013 | WO2013090081A1 Electrode beam welded spark plugs for industrial electrodes |
| 06/20/2013 | WO2013089732A2 Corona igniter including ignition coil with improved isolation |
| 06/20/2013 | US20130157538 Method of manufacturing electrode complex for forming electrode of spark plug, and method of manufacturing spark plug |
| 06/18/2013 | US8466608 Spark plug and manufacturing method thereof |
| 06/13/2013 | US20130147339 Insulator strength by seat geometry |
| 06/13/2013 | US20130147338 Electrode beam welded spark plugs for industrial electrodes |
| 06/12/2013 | CN202997301U A conductive cap of the spark plug of a motorcycle |
| 06/12/2013 | CN103155314A 火花塞 Spark plug |
| 06/12/2013 | CN101647163B Deflection inspecting device for spark plug insulator, deflection inspecting method for spark plug insulator, and manufacturing method for spark plug insulator |
| 06/11/2013 | US8460044 Spark plug electrode and method of making |
| 06/05/2013 | CN103138161A Precious metal alloy composite material electrode for spark plug and manufacturing method thereof |
| 06/05/2013 | CN102576986B 火花塞 Spark plug |
| 05/15/2013 | CN102365799B Manufacturing apparatus and manufacturing method for sparkplugs |
| 05/10/2013 | WO2013065269A1 Manufacturing method of main metal fitting for spark plug and manufacturing method of spark plug |
| 05/08/2013 | CN103094842A Manufacture method for spark plug compound electrode tip and compound electrode tip band |
| 05/08/2013 | CN103094841A Method for manufacturing spark plug |
| 05/02/2013 | WO2013062675A1 Spark plug with ceramic electrode tip |
| 04/25/2013 | WO2013057858A1 Spark plug manufacturing method |
| 04/25/2013 | US20130099654 Spark plug electrode and spark plug manufacturing method |
| 04/25/2013 | US20130099653 Prechamber sparkplug |
| 04/23/2013 | US8427038 Spark plug and process for producing same |
| 04/16/2013 | US8419491 Method for manufacturing a spark plug for preventing deformation caused by cutting a center electrode |
| 04/10/2013 | EP2577824A1 Igniter assembly including arcing reduction features |
| 04/04/2013 | WO2013045140A1 Spark plug with side-mounted ground electrode |
| 04/03/2013 | CN103026562A Method of manufacturing electrode complex for forming electrode of spark-plug, and method of manufacturing spark plug |
| 04/03/2013 | CN103022902A Refurbishing process method for waste spark plug |
| 04/03/2013 | CN101866731B Polymeric housed arrester and method for preparing no-local-discharge compound-glass fiber winding pipe |
| 03/28/2013 | US20130076224 Spark plug firing end configuration |
| 03/28/2013 | DE10205075B4 Zündkerze Spark plug |
| 03/27/2013 | CN103004040A Spark plug and manufacturing method for same |
| 03/27/2013 | CN101868892B 火花塞 Spark plug |
| 03/21/2013 | WO2013038893A1 Esd protection device and method of manufacturing same |
| 03/21/2013 | WO2013038892A1 Esd protection device and method of manufacturing same |
| 03/20/2013 | EP2569834A1 Spark ignition device and ground electrode therefor and methods of construction thereof |
| 03/20/2013 | EP2569833A1 Production method for an electric component and electric component |
| 03/19/2013 | US8398447 Method for manufacturing spark plug for internal-combustion engine |
| 03/14/2013 | US20130065474 Metallic insulator coating for high capacity spark plug |
| 03/14/2013 | US20130065473 Method of manufacturing spark plug |
| 03/13/2013 | EP2568548A2 Method of manufacturing spark plug |
| 03/05/2013 | US8390183 Spark plug and method for manufacturing spark plug |
| 03/05/2013 | US8388396 Method of manufacturing a spark plug having electrode cage secured to the shell |
| 02/27/2013 | EP2561589A1 Spark plug and method for plasma ignition of mixtures containing fuel, in particular in internal combustion engines and internal combustion turbines |
| 02/27/2013 | CN102946054A Plane solid high-voltage switch |
| 02/21/2013 | DE102011110897A1 Method for adjusting ignition voltage of gas-filled switching spark gap formed between electrodes, involves adjusting spacing of electrodes under simultaneous measurement of ignition voltage of switching spark gap |
| 02/20/2013 | EP2560255A1 Spark plug for internal combustion engine and method of manufacturing spark plug |