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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7654238 | Systems and methods for controlled shutdown and direct start for internal combustion engine Systems and methods for controlling shut down of a multiple cylinder internal combustion engine include a mechanical energy storage device to decelerate an engine crankshaft to a stopping position desirable for restarting of the engine. Energy stored during shut dow... | 02/02/2010 |
| 7556012 | Counterweight arrangement for an internal combustion engine in a motor vehicle A counterweight arrangement for an internal combustion engine with three cylinders. The internal combustion engine having a crankshaft rotating about an axis of rotation, with three cranks which succeed one another in the axial direction with respect to the axis of ... | 07/07/2009 |
| 7555896 | Cylinder deactivation for an internal combustion engine A system and method to control engine valve operation during periods of cylinder deactivation of an internal combustion engine. Electromechanical valves are controlled in a manner to reduce fuel consumption and emissions during cylinder deactivation periods of an in... | 07/07/2009 |
| 7464674 | Induction air acoustics management for internal combustion engine A system and method for controlling an internal combustion engine control an actuator in response to variations of intake airflow relative to an average intake airflow to manage induction acoustics. The system and method may include controlling an actuator, such as ... | 12/16/2008 |
| 7458366 | Fugitive hydrocarbon treatment module for internal combustion engine air intake system A fugitive hydrocarbon treatment module and system for controlling the emission of hydrocarbons from the air intake system of an engine includes a zeolite adsorber unit positioned in the air intake system such that all gases flowing to and from the engine through th... | 12/02/2008 |
| 7421836 | Air/fuel ratio validation for lean burn A multi-cylinder group engine system operable in at least a first mode and a second mode, where in the first mode a first and second cylinder group combust air and fuel, and where in the second mode at least one of the first and second cylinder group combusts air an... | 09/09/2008 |
| 7398775 | Detection of a humidity sensor failure in an internal combustion engine A system and method for utilizing a humidity sensor with an internal combustion engine of a vehicle is described. Specifically, information from the humidity sensor is used to adjust a desired air-fuel ratio to reduce engine misfire while improving vehicle fuel econ... | 07/15/2008 |
| 7367316 | Vehicle control system A method for controlling an engine having at least one cylinder, the engine coupled to a vehicle, the engine also having an intake manifold and an outlet control device for controlling flow from the intake manifold into the cylinder, the engine further having an inl... | 05/06/2008 |
| 7278304 | System and method for performing a particulate sensor diagnostic An apparatus comprising an internal combustion engine, an exhaust system in communication with the engine, a particulate sensor associated with the exhaust system, and a controller in electrical communication with the particulate sensor, wherein the controller is co... | 10/09/2007 |
| 7225612 | Method and apparatus for conversion of NO The invention refers to a method and apparatus for converting NOx and comprises the step of controlling a temperature in a NOx-LNT by adsorbing NOx in the LNT at a temperature below a predetermined temperature value to a predetermine... | 06/05/2007 |
| 6895747 | Diesel aftertreatment systems A method and a system for improving conversion efficiency of a urea-based SCR catalyst coupled downstream of a diesel or other lean burn engine is presented. The system includes an electrically heated vaporizer unit into which a mixture of reductant and air in injec... | 05/24/2005 |
| 6868827 | Method for controlling transitions between operating modes of an engine for rapid heating of an emission control device A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, the method operates an engine with a first group of cylinders combusting a lean air/fuel mixture and a second group of cylinders pu... | 03/22/2005 |
| 5136517 | Method and apparatus for inferring barometric pressure surrounding an internal combustion engine A mass airflow based control system for an internal combustion engine is provided which is capable of inferring barometric pressure surrounding the engine. The control system determines the air charge going into the engine from a measured value of mass ai... | 08/04/1992 |
| 4697096 | High voltage solid state switch A high voltage switching circuit is provided for electrically coupling, or decoupling, a high voltage power supply to, or from, a load selectively in accordance with a control signal. The circuit converts the control signal to a radiant energy signal. A p... | 09/29/1987 |
