Ulrich Projahn
19Patents
7h-index
24Co-inventors
62Inventor score
Filing activity: Mar 26, 1987 → May 17, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5392750A | Arrangement for supplying fuel from supply tank to internal combustion engine of motor vehicle | Performing Operations; Transporting | 79 | Expired |
| US4858431A | Apparatus for removing solid particles, especially soot particles, from the exhaust gas of an internal combustion engine | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6213143A | Liquid filter with integral pressure regulator | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4989408A | Device for removing soot from diesel exhaust | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6247486A | Liquid filter with built-in pressure regulator | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4716725A | Apparatus for burning solid particles in the exhaust gas of internal combustion engines | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US6659086B2 | Fuel injection apparatus for internal combustion engines | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US6092500A | Fuel delivery device | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US6540160B2 | Fuel injection device for an internal combustion engine | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US6575139B2 | Injection device comprising an actuator for controlling the needle stroke | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US6651626B2 | Fuel injection apparatus for internal combustion engines | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US4858432A | Pilot burner for an apparatus for burning off solid particles in the exhaust gas of internal combustion engines | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US4731994A | Apparatus for burning solid particles in the exhaust gas of internal combustion engines | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US4982565A | Pilot burner for a device for burning solids in the exhaust gas of internal combustion engines | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US6688289B2 | Fuel injection system for internal combustion engines | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US6021988A | Housing pan for supporting a fluid delivery pump | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6637670B2 | Fuel injection device for an internal combustion engine having a pressure-holding valve | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US6688278B2 | Method and device for shaping the injection pressure course in injectors | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US4858433A | Pilot burner for an apparatus for burning off solid particles in the exhaust gas of internal combustion engines | Mechanical Engineering; Lighting; Heating | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.