Patents
Sitemap › H01 - Basic electric elements › H01T - Spark gaps; Overvoltage arresters using spark gaps; Sparking plugs; Corona devices; Generating ions to be introduced into non-enclosed gases › H01T 13 - Sparking plugs
Patents for H01T 13 - Sparking plugs (7,441)
09/1999
09/07/1999US5948294 Device for cathodic cleaning of wire
09/02/1999WO1999044266A1 Spark plug, alumina insulator for spark plug, and method of manufacturing the same
09/02/1999CA2287241A1 Spark plug, alumina insulator for spark plug, and method of manufacturing the same
09/01/1999CN2336492Y Multiple-cathode strong spark plug
09/01/1999CN2336491Y Fuel-saving spark plug
08/1999
08/31/1999US5944002 Self-venting grommet for coil-on-plug
08/18/1999EP0936710A1 Spark plug having a noble metallic firing tip bonded to an electric discharge electrode and preferably installed in an internal combustion engine
08/17/1999US5937813 Resettable pressure relieving spark plug
08/10/1999US5936332 Spark plug
08/05/1999DE19903224A1 Detector for ion current generated by combustion ions
08/04/1999EP0933848A1 Spark plug with built-in resistor
08/04/1999EP0933847A1 Spark plug for internal combustion engine and method for manufacturing the same
08/04/1999EP0933846A1 Spark plug
07/1999
07/29/1999DE19802487A1 Measurement arrangement for electrically decoupled functional testing of systems in operation
07/28/1999CA2260460A1 Spark plug with built-in resistor
07/27/1999US5929556 Spark plug with center electrode having variable diameter portion retracted from front end on insulator
07/20/1999CA2056852C Spark plug insulator and a method of sintering the same
07/14/1999CN2329101Y Ring shape side electrode spark plug sparkover along surface
07/14/1999CN1222956A Travelling spark ignition system and ignitor therefor
07/07/1999CN1044025C Ignition system for internal combustion engine
07/06/1999US5918571 For an internal combustion engine
07/01/1999DE19860102A1 Spark plug for IC engine
07/01/1999DE19860043A1 Ignition coil without permanent magnets for road vehicle engine systems
07/01/1999DE19859508A1 Spark plug
06/1999
06/29/1999CA2172585C Automotive ignition coil assembly
06/24/1999WO1999031775A1 Spark plug
06/24/1999WO1999031369A1 Method for measuring the proportion of particles in the exhaust gases from an internal combustion engine
06/16/1999CN2324678Y Ultrasonic atomization efficient sparking plug
06/10/1999DE19856801A1 Ignition plug for i.c. engine
06/09/1999CN2323160Y Ignition coil device for IC engine
06/03/1999WO1999027625A1 Spark plug with surface effect
06/03/1999WO1999027624A1 Spark plug for venting excessive pressure
06/02/1999DE19726219C1 Theft protected angled ignition plug cable connection plug
06/02/1999CN2322286Y Fuel-saving ignition cap for gasoline engine
05/1999
05/26/1999CN1043498C Sparking plug with surface discharge section
05/19/1999CN2319940Y 火花塞 Spark plug
05/19/1999CN2319939Y Electronic igniter
05/06/1999EP0913897A1 Spark plug for plasma beam ignition device
05/06/1999DE19800879A1 Ignition coil plug for vehicle ignition
05/05/1999CN2317565Y Multipoint ignition sparking-plug for gasoline engine
05/04/1999CA2121694C Double ignition system for internal combustion engines, ignition plug for double ignition systems, and electric spark generator
04/1999
04/29/1999DE19849317A1 Spark plug for internal combustion engine
04/28/1999CN2316742Y Sparking plug
04/27/1999US5898257 Combustion initiators employing reduced work function stainless steel electrodes
04/22/1999WO1999019953A1 A radial gap high thread spark plug
04/15/1999DE19745165A1 Spark plug for internal combustion engines
04/13/1999US5894186 Spark plug with igniting portion chip composition
04/13/1999US5893448 Adapter feeding apparatus
04/10/1999CA2213667A1 No pollution
04/07/1999EP0906647A1 Computer-controlled internal combustion engine equipped with spark plugs
04/06/1999US5892319 Top and side firing spark plug
04/06/1999US5890473 Ignition device for a multi-cylinder internal combustion engine
04/01/1999DE19743110A1 Cylinder head
03/1999
03/25/1999DE19843712A1 Spark plug assembly for internal combustion engine
03/24/1999EP0903824A1 Spark plug
03/24/1999CN2311864Y Three-core discharge electronic air sparking plug
03/23/1999US5885117 One-part contact element
03/17/1999EP0901572A1 Traveling spark ignition system and ignitor therefor
03/17/1999CN1211096A Environmental sparkplug-cable W/coaxial CD-ignition effect
03/09/1999US5878706 Plug cap for ignition plug
03/03/1999EP0899840A1 Spark plug and an internal combustion engine igniting system using the same
03/03/1999EP0899839A1 Spark plug
03/03/1999EP0899456A1 Ignition device
03/02/1999US5877584 Spark plug for an internal combustion engine
03/02/1999US5875767 Ignition coil arrangement for internal combustion engines
02/1999
02/23/1999US5873340 For attachment to a cylinder of an internal combustion engine
02/23/1999US5873338 Spark plug for an internal combustion engine
02/23/1999CA2047873C Diagnostic device for gas turbine ignition system
02/18/1999WO1999008342A1 An electrical insulator with a duckbill-shaped valve
02/10/1999EP0896407A1 An electrical insulator with a duckbill-shaped valve
02/10/1999CN1042052C Energy-on-demand ignition coil
02/09/1999US5870012 Engine ignition coil device
02/09/1999US5869921 Durability
02/03/1999EP0895327A1 Spark plug
02/02/1999US5866973 Spark plug having a platinum tip on an outer electrode
02/02/1999US5866972 Spark plug in use for an internal combustion engine
01/1999
01/28/1999WO1999004469A1 Spark plug
01/21/1999DE19830213A1 Spark plug for IC engine
01/21/1999DE19720532A1 Internal combustion engine combustion chamber spark plug condition determining system
01/13/1999CN1205124A Bar-type coil for ignition systems
01/12/1999US5859491 Discoloration inhibition and prevention of a reduction in the flashover voltage by having the glaze coating extending from a head portion to a trunk portion of the insulator contain no more than 10% by weight of lead oxide
01/07/1999EP0888655A1 Sparking plug connector for an internal combustion engine
12/1998
12/30/1998WO1998043020A3 Spark plug cable with coaxial metallic sleeve
12/30/1998EP0887547A1 Coil with horizontal secondary spool
12/30/1998EP0871999A4 Electrode material for a spark plug
12/27/1998CA2207642A1 Imroved spark plug for internal combustion engine
12/23/1998CN2301802Y Spark plug with unidirectional resistance
12/22/1998US5852340 Low-voltage type igniter plug having a semiconductor for use in jet and other internal combustion engines and a method of making the semiconductor
12/08/1998US5847492 Spark Plug
12/02/1998EP0880812A1 Spark plug with integral retainer nut
12/01/1998US5842458 Formed in a cylinder head of an internal combustion engine
11/1998
11/26/1998WO1998053540A1 Spark plug
11/26/1998WO1998053467A1 Ignition coil unit for engine and engine provided with plastic head cover
11/25/1998CN1199944A Electric beam material capable of storing and stimulating spark plug current and its use
11/24/1998US5839403 Quick change plug
11/19/1998WO1998052062A1 Measuring device for electrically decoupled function testing of working systems
11/18/1998CN2297812Y Multipolar sparking plug
11/17/1998US5838094 Seals and igniters
11/11/1998CN1198848A Electrode for spark plugs of internal combustion engines and process for manufacturing the same
11/10/1998US5834939 Hand-held ignition voltage tester
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