| 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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| 03/05/2015 | WO2015028436A1 Spark gap having an aging detector and method for measuring the aging of a spark gap |
| 03/03/2015 | US8970096 Anti-fouling spark plug and method of making |
| 02/24/2015 | US8963406 Spark plug |
| 02/19/2015 | US20150048733 Ignition device including ceramic electrode |
| 02/17/2015 | CA2459262C Metal fixing material bushing and method for producing a base plate of a metal fixing material bushing |
| 02/11/2015 | CN104348086A 静电保护部件以及静电保护部件的制造方法 Static protection component manufacturing method and electrostatic protection components |
| 02/10/2015 | US8952601 Spark plug |
| 02/05/2015 | WO2015014898A1 Method for producing a multiplicity of surge arresters in an assembly, surge arrester and surge arrester assembly |
| 02/05/2015 | DE102013012842A1 Verfahren zur Herstellung einer Vielzahl von Ableitern im Verbund, Ableiter und Ableiterverbund A process for producing a variety of traps in the composite, arrestor, and Ableiterverbund |
| 01/29/2015 | US20150031263 Method of constructing a new type of spark plug |
| 01/28/2015 | EP2828940A1 Corona ignition device with improved electrical performance |
| 01/27/2015 | US8941385 Enhanced method of sensing ionization current in spark ignition internal combustion engines and related spark plug structures |
| 01/27/2015 | US8939808 Method and device for manufacturing spark plug |
| 01/22/2015 | US20150022074 Spark plug having an embedded tip that is prevented from detachment due to thermal stress |
| 01/21/2015 | CN104303382A 具有改进的电气性能的电晕点火装置 Corona ignition device having improved electrical performance |
| 01/15/2015 | DE102013213688A1 Gussverfahren zur Herstellung einer Schutzummantelung um einen Überspannungsableiter und eine Gießform hierfür Casting process for producing a protective coating to a surge and a mold therefor |
| 01/14/2015 | CN104285346A 衬垫及其制造方法和火花塞及其制造方法 Pad and manufacturing method thereof and a method of manufacturing a spark plug |
| 01/14/2015 | CN104283112A 宽频带四分之一波长避雷器及其制造方法 Wide-band quarter-wavelength arrester and its manufacturing method |
| 01/14/2015 | CN102738709B 火花塞的制造方法 Spark plug manufacturing method |
| 01/13/2015 | US8933617 Spark plug with ceramic electrode tip |
| 01/08/2015 | WO2015002045A1 Surge protection device, manufacturing method therefor, and electronic component including same |
| 01/06/2015 | US8928213 Spark plug for internal-combustion engine |
| 12/31/2014 | CN104253378A 火花塞的制造方法 Spark plug manufacturing method |
| 12/30/2014 | US8922104 Spark plug having an embedded tip that is prevented from detachment due to thermal stress |
| 12/30/2014 | US8922102 Composite spark plug |
| 12/24/2014 | CN104242068A 一种汽车用陶瓷火花塞烧结工艺 An automobile spark plug with a ceramic sintering process |
| 12/24/2014 | CN104242067A 通用发动机火花塞帽的装配方法 General assembly of the engine spark plug cap method |
| 12/17/2014 | CN102629734B 火花塞及其制造方法 A spark plug and a manufacturing method |
| 12/11/2014 | US20140361679 Spark plug for internal combustion engine and method of manufacturing the same |
| 12/02/2014 | US8901805 Ceramic electrode, ignition device therewith and methods of construction thereof |
| 11/25/2014 | US8896194 Spark ignition device and ground electrode therefor and methods of construction thereof |
| 11/25/2014 | US8896192 Spark plug and method of manufacturing the same |
| 11/18/2014 | US8890399 Method of making ruthenium-based material for spark plug electrode |
| 11/18/2014 | US8890397 Igniter assembly including arcing reduction features |
| 11/06/2014 | US20140327999 Corona ignition with hermetic combustion seal |
| 11/04/2014 | US8877099 Ti3SiC2 based material, electrode, spark plug and manufacturing method thereof |
| 11/04/2014 | US8876569 Vacuum cell-assembling device and cell-assembling method |
| 10/28/2014 | US8870618 Encapsulated metal microtip microplasma device and array fabrication methods |
| 10/21/2014 | US8866369 Spark plug having improved ground electrode orientation and method of forming |
| 10/14/2014 | US8860292 Spark plug and method of manufacturing the same |
| 10/14/2014 | US8860290 Igniter for igniting a fuel/air mixture in an internal combustion engine using a corona discharge |
| 10/09/2014 | DE102004063077B4 Zündeinrichtung Ignition |
| 10/09/2014 | DE102004018933B4 Verfahren zur Herstellung einer Mittelelektrode einer Zündkerze A method of manufacturing a center electrode of a spark plug |
| 10/07/2014 | US8853930 Ignition plug and method of manufacturing the same |
| 10/07/2014 | US8853928 Spark plug electrode, method for producing same, spark plug, and method for producing spark plug |
| 10/07/2014 | US8853924 Spark ignition device for an internal combustion engine, metal shell therefor and methods of construction thereof |
| 10/02/2014 | US20140292178 Spark plug having a side-mounted ground electrode |
| 09/30/2014 | US8847726 Method for manufacturing ESD protection device and ESD protection device |
| 09/30/2014 | US8844490 Corona igniter having controlled location of corona formation |
| 09/23/2014 | US8839753 Corona igniter having improved gap control |
| 09/18/2014 | US20140271239 Spark suppression ballast closely coupled to emitter electrode of ion generator |
| 09/18/2014 | US20140268480 High voltage connection sealing method for corona ignition coil |
| 09/18/2014 | US20140265815 Spark plug and method of manufacturing the same |
| 09/18/2014 | US20140265814 Spark plug with laser keyhole weld attaching ground electrode to shell |
| 09/18/2014 | US20140265813 Spark plug having multi-layer sparking component attached to ground electrode |
| 09/18/2014 | US20140265812 Method of manufacturing spark plug electrode material |
| 09/18/2014 | US20140261969 Esd protection device and method for manufacturing the same |
| 09/18/2014 | DE102014103382A1 Zündkerze und Verfahren zur Herstellung einer Zündkerze Spark plug and method for manufacturing a spark plug |
| 09/18/2014 | DE102014103053A1 Verfahren zum Herstellen eines Zündkerzen-Elektrodenmaterials A method for manufacturing a spark plug electrode material |
| 09/16/2014 | US8834224 Method of manufacturing metal shell assembly for spark plug, method of manufacturing spark plug, and apparatus for manufacturing metal shell assembly for spark plug |
| 09/10/2014 | EP2775576A1 Manufacturing method of main metal fitting for spark plug and manufacturing method of spark plug |
| 08/28/2014 | US20140239796 Method of capacitive discharge welding firing tip to spark plug electrode |
| 08/28/2014 | DE102014102076A1 Verfahren zum kapazitiven Entladungsschweißen einer Zündspitze an eine Zündkerzenelektrode A method for capacitive discharge welding a firing tip of a spark plug electrode |
| 08/20/2014 | EP2768094A2 Spark plug and method of manufacturing the same |
| 08/19/2014 | US8810117 Spark plug having a hole for adjustment |
| 08/14/2014 | US20140225497 Prechamber module for a laser spark plug and method for producing same |
| 08/14/2014 | US20140225496 Spark plug and method of manufacturing the same |
| 08/13/2014 | CN103986079A 火花塞及其制造方法 And a method of manufacturing the spark plug |
| 08/07/2014 | US20140220234 Method for coating spark plug threads with a polytetrafluoroethylene mixture |
| 08/06/2014 | EP2763249A1 Small-diameter spark plug with resistive seal |
| 08/06/2014 | CN103972792A 火花塞以及其制造方法 And a manufacturing method of the spark plug |
| 08/06/2014 | CN102195236B 火花塞和用于制造火花塞的方法 Method for manufacturing spark plugs and spark plug |
| 08/05/2014 | US8796909 Igniter plug with cooling fluid and method of manufacturing igniter plug |
| 08/05/2014 | US8795017 Method of manufacturing a spark plug electrode and a spark plug |
| 07/31/2014 | US20140210336 Ignition plug and method of manufacturing the same |
| 07/31/2014 | US20140210334 Spark plug having firing pad |
| 07/31/2014 | DE102014101060A1 Zündkerze mit Zündplättchen Spark plug cap guns |
| 07/30/2014 | CN103953486A 点火装置新工艺 New Technology ignition device |
| 07/29/2014 | US8791626 Spark plug with ring member coupled to center electrode thereof |
| 07/24/2014 | US20140204198 Inspection device for article being inspected, spark plug inspection method, and method for manufacturing spark plug |
| 07/24/2014 | US20140203701 Electrode for a spark plug and method for its production |
| 07/24/2014 | DE102013022269B3 Verfahren zum Herstellen einer Korona-Zündeinrichtung A method of manufacturing a corona ignition device |
| 07/16/2014 | CN103928844A 火花塞以及其制造方法 And a manufacturing method of the spark plug |
| 07/16/2014 | CN102437513B Esd保护器件及其制造方法 Esd protection device and manufacturing method thereof |
| 07/15/2014 | US8779466 ESD protection device and method for manufacturing the same |
| 07/10/2014 | US20140194026 Manufacturing method of main metal fitting for spark plug and manufacturing method of spark plug |
| 07/09/2014 | CN101950928B 中心电极送料上料装置 The center electrode feeding feeding device |
| 07/03/2014 | US20140184054 Clad Electrode for Spark Plug and Method For Manufacturing Same |
| 07/02/2014 | CN103904561A 弯折装置 Bending device |
| 07/01/2014 | US8766520 Spark plug with ground electrode plateau and method of making the same |
| 06/26/2014 | DE102006062737B4 Verfahren zum Herstellen einer Zündkerze A method for manufacturing a spark plug |
| 06/25/2014 | CN103004040B 火花塞及其制造方法 And a method of manufacturing the spark plug |
| 06/18/2014 | DE102013104643B3 Corona ignition device, has housing tube providing support layer and conductive layer, where support layer is made of material with higher electrical conductivity than material of support layer |
| 06/18/2014 | CN103875143A Spark plug having improved ground electrode orientation and method of forming |
| 06/11/2014 | CN203645136U 一种火花塞防电压击穿保护件的组装装置 A spark plug anti-assembled device breakdown voltage protective member |
| 06/10/2014 | US8747176 Method of forming a spark plug |
| 06/04/2014 | EP2738891A1 Spark plug |
| 06/04/2014 | CN103840373A Corona ignition device |
| 06/04/2014 | CN103840372A Method of manufacturing spark plug |
| 06/04/2014 | CN103840371A Method for inspecting spark plug and method for manufacturing spark plug |