Frank Thoma
18Patents
8h-index
25Co-inventors
72Inventor score
Filing activity: Apr 14, 1975 → Apr 25, 1994
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5479775A | Air-compressing fuel-injection internal-combustion engine with an exhaust treatment device for reduction of nitrogen oxides | Emerging Cross-Sectional Technologies | 51 | Expired |
| US5007401A | Magnetic valve controlled injection device | Mechanical Engineering; Lighting; Heating | 43 | Expired |
| US4006859A | Fuel injection nozzle for internal combustion engines | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US4375274A | Choke pin nozzle | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US4077376A | Injection installation for diesel internal combustion engine | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US5275207A | Multiway valve | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5390642A | Fuel injection system arrangement for an internal combustion engine | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US4754738A | Pressure oil feed arrangement for a hydraulically actuated timing device cooperating with an injection pump | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4450818A | Hydraulic injection-adjusting device for high pressure injection installations in auto-igniting internal combustion engines | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4569319A | Air-compressing injection internal combustion engine, especially for passenger motor vehicles | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US4706627A | Speed governor for injection pumps in internal combustion engines | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US4750463A | Fuel injection system for an air-compression internal-combustion engine with electronic regulation | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4108383A | Fuel injection valve with stepped injection | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US4382553A | Fuel injection nozzle for an air-compressing internal combustion engine | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US5322041A | Emergency shut-down arrangement for a diesel engine | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5385170A | Multiway valve | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4105002A | Pneumatic controller for an injection pump, especially for diesel engines | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US4389018A | Fuel injection nozzle for internal combustion engines | Mechanical Engineering; Lighting; Heating | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.