Famous Patents
The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7255080 | Spark plug heating for a spark ignited engine A system for an engine of a vehicle, comprising of at least one combustion chamber located in the engine, a delivery system configured to deliver a fuel and a fluid to the combustion chamber, an ignition system including a spark plug configured to ignite the fuel wi... | 08/14/2007 |
| 7073471 | Apparatus and method for improving engine performance A spark plug adapter allows for installation into the cylinder head of an internal combustion engine of an improved high-performance spark plug of configuration considerably different from that which the cylinder head was manufactured to accept. This is accomplished... | 07/11/2006 |
| 7020952 | Method for producing a glow plug A green ceramic heater including a green heating resistor formed of an electrically conductive ceramic (e.g., silicide or carbide of a metal element such as W, Ta, or Nb) and an insulative ceramic (e.g., silicon nitride) and power supply leads (e.g., made of W), a f... | 04/04/2006 |
| 6334418 | Method of using fuel in an engine A method of using a petroleum based fuel in an internal combustion gasoline engine. The fuel has a flash point of at least 5° F. and the fuel is heated, within the engine, to a temperature above 5° F. The electrodes of the spark plugs are continually en... | 01/01/2002 |
| 6060821 | Heater equipped spark plug A heater-equipped spark plug comprises an insulator having an insulator nose which holds thereon a center electrode in the vicinity of a free end of an axial bore, a lead wire arranged along a surface of the insulator, a heater formed on the insulator nos... | 05/09/2000 |
| 5230309 | Spark plug heater control system for internal combustion engine A system for controlling heater mounted on a spark plug which ignites the air-fuel mixture in the combustion chamber of an internal combustion chamber. The heater-on time is determined such that it decreases with increasing engine temperature and increasi... | 07/27/1993 |
| 5044331 | Air-fuel ratio control method for an internal combustion engine having spark plugs with heaters An air-fuel ratio control method controls the air-fuel ratio of an air-fuel mixture supplied to an internal combustion engine having spark plugs, and heaters for heating the air-fuel mixture in the vicinity of respective ones of the heaters, the air-fuel ... | 09/03/1991 |
