Patrick G. Szymkowicz
19Patents
6h-index
25Co-inventors
66Inventor score
Filing activity: Mar 7, 2002 → Sep 6, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6915629B2 | After-treatment system and method for reducing emissions in diesel engine exhaust | Emerging Cross-Sectional Technologies | 51 | Expired |
| US6907725B2 | Method for reducing engine exhaust emissions | Emerging Cross-Sectional Technologies | 33 | Expired |
| US7231906B1 | Simultaneous EGR correction and individual cylinder combustion phase balancing | Emerging Cross-Sectional Technologies | 21 | Active |
| US8146555B2 | Direct-injection spark-ignition system | Emerging Cross-Sectional Technologies | 11 | Active |
| US7231905B1 | Internal combustion engine exhaust gas recirculation control | Emerging Cross-Sectional Technologies | 10 | Active |
| US7594493B2 | Method for controlling fuel injection in a compression ignition engine | Emerging Cross-Sectional Technologies | 9 | Active |
| US6981367B2 | Hydrogen and oxygen generation from a water vapor containing exhaust | Emerging Cross-Sectional Technologies | 6 | Expired |
| US9551248B2 | Method and apparatus to recover exhaust gas recirculation coolers | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US8615983B2 | Heat exchanger method and apparatus for engine exhaust gas recirculation system | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US8820301B2 | Modulating hydrodynamic flow characteristics to alleviate automotive heat exchanger contamination | Emerging Cross-Sectional Technologies | 3 | Active |
| US7418336B2 | Method for internal combustion engine control using pressure ratios | Emerging Cross-Sectional Technologies | 3 | Active |
| US9109518B2 | Method and apparatus for monitoring performance of EGR heat exchanger | Emerging Cross-Sectional Technologies | 3 | Active |
| US7921828B2 | Modulating flow through an exhaust gas recirculation cooler to maintain gas flow velocities conducive to reducing deposit build-ups | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US7669584B2 | Method and apparatus for determining piston position in an engine | Emerging Cross-Sectional Technologies | 2 | Active |
| US8484790B2 | Exhaust Gas Recirculation cooler cleaner having active material actuator | Performing Operations; Transporting | 1 | Active |
| US11802502B1 | Hydrocarbon adsorption and desorption control in vehicle exhaust systems using H2O traps | Emerging Cross-Sectional Technologies | 1 | Active |
| US9145853B2 | Exhaust gas recirculation cooler and system | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US12338762B2 | Exhaust gas treatment system for controlling hydrocarbon adsorption/desorption in hydrocarbon trap | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9097214B2 | Exhaust gas recirculation system having active material actuated by-pass | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.