Tecogen Inc.
🏢 View company profile →25Patents
12Active
25Granted
46Portfolio score
Filing activity: Mar 13, 1987 → Jun 23, 2022 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4951648A | Conveyor oven | Human Necessities | 125 | Expired |
| US4773847A | Thermoelectric field burner | Emerging Cross-Sectional Technologies | 48 | Expired |
| US5166487A | Cooking oven with convection and microwave heating | Electricity | 46 | Expired |
| US5014679A | Gas fired combination convection-steam oven | Human Necessities | 39 | Expired |
| US5033264A | Compact cogeneration system | Emerging Cross-Sectional Technologies | 29 | Expired |
| US7239034B2 | Engine driven power inverter system with cogeneration | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5147516A | NO.sub.x reduction by sulfur tolerant coronal-catalytic apparatus and method | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5291668A | Steam atmosphere drying exhaust steam recompression system | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5240575A | NO.sub.x reduction by sulfur tolerant coronal-catalytic apparatus and method | Performing Operations; Transporting | 15 | Expired |
| US5245977A | Flow proportioning mixer for gaseous fuel and air and internal combustion engine gas fuel mixer system | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5315981A | Method for converting a diesel engine to a natural gas fueled engine | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5333539A | Microwave enhanced deep fat fryer | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5363749A | Microwave enhanced deep fat fryer | Emerging Cross-Sectional Technologies | 7 | Expired |
| US8578704B2 | Assembly and method for reducing nitrogen oxides, carbon monoxide and hydrocarbons in exhausts of internal combustion engines | Emerging Cross-Sectional Technologies | 4 | Active |
| US7243017B2 | Method for controlling internal combustion engine emissions | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US9702306B2 | Internal combustion engine controller | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US9121326B2 | Assembly and method for reducing nitrogen oxides, carbon monoxide and hydrocarbons in exhausts of internal combustion engines | Emerging Cross-Sectional Technologies | 1 | Active |
| US9995195B2 | Emissions control systems and methods for vehicles | Emerging Cross-Sectional Technologies | 1 | Active |
| US9856767B2 | Systems and methods for reducing emissions in exhaust of vehicles and producing electricity | Emerging Cross-Sectional Technologies | 0 | Active |
| US10774720B2 | NOx reduction without urea using a dual stage catalyst system with intercooling in vehicle gasoline engines | Emerging Cross-Sectional Technologies | 0 | Active |
| US9470126B2 | Assembly and method for reducing ammonia in exhaust of internal combustion engines | Emerging Cross-Sectional Technologies | 0 | Active |
| US11936327B2 | Hybrid power system with electric generator and auxiliary power source | Electricity | 0 | Active |
| US9631534B2 | Assembly and method for reducing nitrogen oxides, carbon monoxide, hydrocarbons and hydrogen gas in exhausts of internal combustion engines and producing an electrical output | Emerging Cross-Sectional Technologies | 0 | Active |
| US10774724B2 | Dual stage internal combustion engine aftertreatment system using exhaust gas intercooling and charger driven air ejector | Emerging Cross-Sectional Technologies | 0 | Active |
| US9956526B2 | Poison-resistant catalyst and systems containing same | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.