Synergy Research Group, Inc.
93Patents
1Active
93Granted
39Portfolio score
Filing activity: Sep 24, 1973 → May 14, 2014
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5554453A | Carbonate fuel cell system with thermally integrated gasification | Emerging Cross-Sectional Technologies | 359 | Expired |
| US4772634A | Apparatus and method for methanol production using a fuel cell to regulate the gas composition entering the methanol synthesizer | Emerging Cross-Sectional Technologies | 325 | Expired |
| US4917971A | Internal reforming fuel cell system requiring no recirculated cooling and providing a high fuel process gas utilization | Emerging Cross-Sectional Technologies | 148 | Expired |
| US4532192A | Fuel cell system | Emerging Cross-Sectional Technologies | 117 | Expired |
| US5084362A | Internal reforming molten carbonate fuel cell system with methane feed | Emerging Cross-Sectional Technologies | 114 | Expired |
| US4182795A | Fuel cell thermal control and reforming of process gas hydrocarbons | Emerging Cross-Sectional Technologies | 110 | Expired |
| US4567117A | Fuel cell employing non-uniform catalyst | Emerging Cross-Sectional Technologies | 78 | Expired |
| US4444851A | Fuel cell stack | Emerging Cross-Sectional Technologies | 68 | Expired |
| US4365007A | Fuel cell with internal reforming | Emerging Cross-Sectional Technologies | 62 | Expired |
| US4329403A | Electrolyte-electrode assembly for fuel cells | Emerging Cross-Sectional Technologies | 58 | Expired |
| US5736026A | Biomass-fuel cell cogeneration apparatus and method | Emerging Cross-Sectional Technologies | 56 | Expired |
| US5175062A | Reforming unit for fuel cell stack | Emerging Cross-Sectional Technologies | 55 | Expired |
| US4716023A | Composite partial oxidizer and reformer | Emerging Cross-Sectional Technologies | 53 | Expired |
| US5422195A | Carbonate fuel cell with direct recycle of anode exhaust to cathode | Emerging Cross-Sectional Technologies | 50 | Expired |
| US3968775A | Fuel system for internal combustion engines | Emerging Cross-Sectional Technologies | 46 | Expired |
| US4169917A | Electrochemical cell and separator plate thereof | Emerging Cross-Sectional Technologies | 44 | Expired |
| US5625241A | Carousel electric generator | Electricity | 42 | Expired |
| US4192906A | Electrochemical cell operation and system | Emerging Cross-Sectional Technologies | 38 | Expired |
| US4365006A | Fuel cell system for mobile applications | Emerging Cross-Sectional Technologies | 37 | Expired |
| US4746329A | Methanol fuel reformer | Emerging Cross-Sectional Technologies | 36 | Expired |
| US4112889A | Fuel system and vaporizer for internal combustion engines | Emerging Cross-Sectional Technologies | 34 | Expired |
| US4588659A | Fuel vaporizer | Emerging Cross-Sectional Technologies | 34 | Expired |
| US4158354A | Solar energy collection system | Emerging Cross-Sectional Technologies | 33 | Expired |
| US4397917A | Fuel cell pack with internal connection of fuel cells | Emerging Cross-Sectional Technologies | 31 | Expired |
| US3935029A | Method of fabricating a carbon - polytetrafluoroethylene electrode - support | Emerging Cross-Sectional Technologies | 31 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.