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Class Information
Number: 123/169R
Name: Internal-combustion engines > Igniters > Sparkers > Plugs
Description:
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7449822 |
Structure of spark plug ensuring stability in location of production of sparks |
Nov. 11, 2008 |
| 7347174 |
Combustion promoting device for internal combustion engine |
Mar. 25, 2008 |
| 7250711 |
Spark plug with increased durability and carbon fouling resistance |
Jul. 31, 2007 |
| 7234429 |
Spark plug with increased durability |
Jun. 26, 2007 |
| 7172483 |
Method of making metallic shell for spark plug, method of making spark plug having metallic shell and spark plug produced by the same |
Feb. 6, 2007 |
| 7124725 |
Engine spark plug grounding structure, grounding wiring apparatus, and grounding wiring method |
Oct. 24, 2006 |
| 7116041 |
Spark electrode assembly |
Oct. 3, 2006 |
| 7109645 |
Spark plug |
Sep. 19, 2006 |
| 7007653 |
Robust torch jet spark plug electrode |
Mar. 7, 2006 |
| 6848415 |
Internal combustion engine with direct injection |
Feb. 1, 2005 |
| 6794802 |
Spark plug for an internal combustion engine and method for producing a spark plug |
Sep. 21, 2004 |
| 6724132 |
Spark plug for an engine for a cogeneration system |
Apr. 20, 2004 |
| 6703770 |
Spark plug attachment structure and spark plug therefor |
Mar. 9, 2004 |
| 6670740 |
High electrical stiction spark plug |
Dec. 30, 2003 |
| 6655334 |
Ignition apparatus for use in internal combustion engine |
Dec. 2, 2003 |
| 6617769 |
Spark plug and mounting structure of the same |
Sep. 9, 2003 |
| 6583538 |
Spark plug |
Jun. 24, 2003 |
| 6573641 |
Spark plug |
Jun. 3, 2003 |
| 6557508 |
Robust torch jet spark plug electrode |
May. 6, 2003 |
| 6508216 |
Spark plug boot keeper assembly |
Jan. 21, 2003 |
| 6495948 |
Spark plug |
Dec. 17, 2002 |
| 6470845 |
Spark plug for internal combustion engine |
Oct. 29, 2002 |
| 6382159 |
Temperature and pressure activated pressure relieving spark plug |
May. 7, 2002 |
| 6363898 |
Quick replacement igniter assembly |
Apr. 2, 2002 |
| 6310430 |
Spark plug having a metallic terminal within a through-hole |
Oct. 30, 2001 |
| 6304023 |
Spark plug for an internal combustion engine having a helically-grooved electrode |
Oct. 16, 2001 |
| 6232703 |
Multiple electrode igniter |
May. 15, 2001 |
| 6152095 |
Quick replacement spark plug assembly |
Nov. 28, 2000 |
| 6119667 |
Integrated spark plug ignition coil with pressure sensor for an internal combustion engine |
Sep. 19, 2000 |
| 6089201 |
Method of using fuel in an engine |
Jul. 18, 2000 |
| D427972 |
Negative electrode for spark plug |
Jul. 11, 2000 |
| 6069434 |
Manufacture and method of assembly for a spark electrode |
May. 30, 2000 |
| 5979387 |
Quick replacement spark plug assembly |
Nov. 9, 1999 |
| 5950585 |
Spark plug ultrasound whistle |
Sep. 14, 1999 |
| 5918571 |
Dual electrode high thread spark plug |
Jul. 6, 1999 |
| 5873340 |
Spark plug for venting excessive pressure |
Feb. 23, 1999 |
| 5839403 |
Quick change plug |
Nov. 24, 1998 |
| 5799634 |
Spark plug for venting excessive pressure |
Sep. 1, 1998 |
| 5706847 |
Quick replacement spark plug assembly |
Jan. 13, 1998 |
| 5697334 |
Spark plug with integral retainer nut |
Dec. 16, 1997 |
| 5642721 |
Double ignition system for internal combustion engines, ignition plug for double ignition systems, and electric spark generator |
Jul. 1, 1997 |
| 5476695 |
Sparking plug cap |
Dec. 19, 1995 |
| 5408961 |
Ignition plug |
Apr. 25, 1995 |
| 5283499 |
Igniter and cable connector assembly |
Feb. 1, 1994 |
| 5237280 |
Apparatus for measurement of spark plug ignition current to monitor combustion |
Aug. 17, 1993 |
| 5186132 |
Spark plug for an internal combustion engine |
Feb. 16, 1993 |
| 5180313 |
Ground connection for the spark plugs of a multi-cylinder internal-combustion vehicle engine |
Jan. 19, 1993 |
| 5091672 |
Shield for aligning a ground electrode of a spark plug in a cylinder head |
Feb. 25, 1992 |
| 4989557 |
Spark plug assembly for internal combustion engine |
Feb. 5, 1991 |
| 4983882 |
Ignition amplifier device |
Jan. 8, 1991 |
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