| Patents for H01T 13 - Sparking plugs (7,441) |
|---|
| 01/25/1990 | WO1990000821A1 Spark plug temperature control |
| 01/24/1990 | CN2051795U Quick burning, fuel saving spark plug |
| 01/24/1990 | CN2051794U Double ring, multi-stage spark plug |
| 01/24/1990 | CN2051793U Discharge valve for high-energy igniting system |
| 01/10/1990 | EP0350152A2 An igniter plug particularly for use with very low temperature liquid fuel |
| 01/10/1990 | CN2051021U Spark plug |
| 01/09/1990 | US4893051 Platinium alloy tip |
| 01/09/1990 | US4892070 Technique and spark plug to ignite very lean fuel air mixtures, particulary for gas engines |
| 01/04/1990 | DE3821688A1 Spark electrodes (ignition electrodes) in a spark plug with a front chamber |
| 01/03/1990 | EP0349183A1 A spark plug |
| 01/03/1990 | CN1038549A Method for manufacturing electrodes for spark plug |
| 12/21/1989 | DE3820555A1 Spark plug for an internal combustion engine |
| 12/21/1989 | DE3820554A1 Spark plug for an internal combustion engine |
| 12/21/1989 | DE3820552A1 Spark plug for an internal combustion engine |
| 12/20/1989 | EP0268598B1 Spark plug with surface discharge section |
| 12/14/1989 | WO1989012339A1 Method for manufacturing electrodes for a spark plug |
| 12/14/1989 | WO1989012338A1 Method for manufacturing electrodes for a spark plug |
| 12/14/1989 | DE3918466A1 Zuendkerze mit halboberflaechlicher entladung fuer einen verbrennungsmotor und verfahren zur herstellung der massenelektroden einer solchen kerze Spark plug with halboberflaechlicher discharge for an internal combustion engine and method for manufacturing the earth electrodes such candle |
| 12/13/1989 | CN2049414U Multispeed energy-saving ring spark plug |
| 12/12/1989 | US4886473 Ignition terminal assembly |
| 12/06/1989 | EP0344387A1 Ignition unit comprising a combined spark plug and transformer for a cylinder of a thermal engine with spark ignition |
| 12/06/1989 | EP0226595B1 Spark plug for internal combustion engines |
| 12/05/1989 | US4884977 Reinforced boot for spark plug cables |
| 11/30/1989 | WO1989011745A1 Spark plug |
| 11/29/1989 | CN2048629U Spark plug for cold card starting |
| 11/23/1989 | EP0342641A1 Sparking plug |
| 11/21/1989 | US4881913 Protective oxide coating |
| 11/21/1989 | US4881403 Spark plug with pressure sensor |
| 11/15/1989 | EP0341807A2 A spark plug |
| 11/14/1989 | US4880389 Ignition plug connector and manufacturing method |
| 11/02/1989 | EP0339043A1 Formation of electric field discharges |
| 11/01/1989 | CN2047074U Sparking plug with round or ring type electrode |
| 10/12/1989 | DE3810886A1 Plug connector, especially for glow plugs |
| 10/10/1989 | US4873466 Igniter plug |
| 10/05/1989 | WO1989009384A1 Pressure transducer for determining the pressure in the combustion chamber of an internal combustion engine |
| 09/26/1989 | US4870319 Spark plug with creepage spark gap |
| 09/21/1989 | DE3907190A1 Spark plug having a pressure sensor |
| 09/20/1989 | CN2044771U Three-electrode spark plug |
| 09/06/1989 | EP0227693B1 Spark plug connector |
| 09/06/1989 | CN1035323A Pt-base alloy for spark plug |
| 09/05/1989 | US4863391 Contact terminal for high voltage resistor wire |
| 08/30/1989 | EP0329721A1 Process for manufacturing a spark plug for internal combustion engines |
| 08/23/1989 | EP0328833A1 Igniter with wear indicator |
| 08/22/1989 | US4859900 Ignition plug for improving fuel economy of an internal combustion engine and decreasing the amount of toxicants expelled to the environment |
| 08/22/1989 | US4859194 Spark plug connector |
| 08/16/1989 | EP0328467A1 Electrical connection terminal |
| 08/09/1989 | EP0327478A1 Electrical connection terminal |
| 08/09/1989 | CN2042519U High-voltage spark-energy measuring instrument for petrol engine |
| 08/02/1989 | EP0325580A1 Pressurized ignition system |
| 08/01/1989 | US4853582 Containing chromium |
| 07/25/1989 | US4851732 Spark plug having a flame deflector for use in an internal combustion engine |
| 07/25/1989 | US4850316 Contact-breaking ignition plug and method of generating a spark therewith |
| 07/19/1989 | EP0324552A1 Spark plug connector |
| 07/19/1989 | EP0323956A1 Spark plug provided with a measurement device. |
| 07/11/1989 | US4846736 Ignition wire terminal |
| 07/05/1989 | EP0322839A1 Spark plug |
| 07/04/1989 | US4845400 Spark plug for internal-combustion engine |
| 06/29/1989 | WO1989005916A1 Multipoint spark ignition system |
| 06/27/1989 | US4841925 Enhanced flame ignition for hydrocarbon fuels |
| 06/20/1989 | US4840594 Method for manufacturing electrodes for a spark plug |
| 06/08/1989 | DE3740408A1 Cylinder head cover |
| 05/23/1989 | US4831995 Integrated ignition-transformer assembly for the cylinder of a controlled ignition heat engine |
| 05/17/1989 | EP0316290A1 A resistive mastic for sparking plugs with incorporated resistors |
| 05/03/1989 | DE3735392A1 Central electrode design for a spark plug |
| 05/02/1989 | US4826462 Method for manufacturing a spark plug electrode |
| 04/26/1989 | CN2036581U Shielded automobile's ignition system |
| 04/25/1989 | US4824385 Rigid sheath for a spark plug cable and its associated boot |
| 04/19/1989 | EP0311608A1 Spark plug with surface discharge section. |
| 04/12/1989 | CN2035925U Spark plug cap for indicating failure by illumination |
| 04/06/1989 | DE3732827A1 High-voltage ignition system |
| 03/29/1989 | CN2035148U Disassembled sparking-plug |
| 03/23/1989 | WO1989002528A1 High-voltage switch |
| 03/21/1989 | US4814665 Center electrode structure for spark plug |
| 03/21/1989 | US4814664 Igniter with wear indicator |
| 03/16/1989 | DE3730120A1 Spark plug connector |
| 03/16/1989 | DE3730119A1 Spark plug connector |
| 03/16/1989 | DE3730118A1 Spark plug connector |
| 03/09/1989 | DE3729051A1 Ignition coil |
| 03/09/1989 | DE3728161A1 Spark plug with multiple ignition |
| 03/08/1989 | EP0305531A1 Combustion system for internal combustion engine and combustor used therefor |
| 03/08/1989 | CN2033948U Multipolar semiconductor spark plug |
| 03/07/1989 | US4810929 Spark plug temperature control |
| 03/07/1989 | US4810220 Stable gap |
| 03/07/1989 | US4810198 Reinforced boot for spark plug cables |
| 02/28/1989 | US4808878 Ignition plug for internal combustion engines to cause instant combustion |
| 02/28/1989 | US4808135 Center electrode structure for spark plug |
| 02/23/1989 | WO1989001717A1 Process for manufacturing a spark plug for internal combustion engines |
| 02/23/1989 | WO1989001716A1 Igniter plug with vibration damping means |
| 02/23/1989 | DE3726714A1 Spark plug |
| 02/21/1989 | US4805570 In an internal combustion engine |
| 02/15/1989 | EP0303353A1 Metallized glass seal resistor composition |
| 02/15/1989 | EP0302902A1 Electrical connector |
| 02/15/1989 | CN2032567U Gas inflating pump for motorcycle |
| 02/08/1989 | EP0302474A1 Spark plug |
| 02/07/1989 | US4803395 Process for the manufacture of a platinum-tipped bimetallic central electrode for an ignition plug and the electrode produced according to this process |
| 01/19/1989 | EP0288512A4 Ignition boot. |
| 01/17/1989 | US4798991 Surface-gap spark plug for internal combustion engines |
| 01/10/1989 | US4797115 Angled boot for angled spark plug cable terminals |
| 01/03/1989 | US4795944 Containing borosilicate and barium borate glass, mullite, zirconia, carbon black, bentonite, sucrose, lithium carbonate, antimony and silicon |
| 01/03/1989 | US4795938 Injection molded automotive spark plug |