Udo Hafner
56Patents
15h-index
62Co-inventors
87Inventor score
Filing activity: Aug 6, 1979 → Aug 19, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5038738A | Fuel injection device for internal combustion engines | Mechanical Engineering; Lighting; Heating | 75 | Expired |
| US4597558A | Electromagnetically actuatable valve | Emerging Cross-Sectional Technologies | 72 | Expired |
| US4830286A | Electromagnetically actuatable valve | Emerging Cross-Sectional Technologies | 37 | Expired |
| US4304128A | Apparatus for measuring the mass of a flowing medium | Physics | 27 | Expired |
| US5016594A | Fuel distributor for fuel injection systems of internal combustion engines | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US4813599A | Electromagnetically actuatable fuel injection valve | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US4857003A | Apparatus for electrical connection of electromagnetically actuatable fuel injection valves | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US5203304A | Fuel injection system for internal combustion engines | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US4582085A | Electromagnetically actuatable valve | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5299542A | Fuel distributor | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US5226391A | Electrically actuatable fuel injection valve | Electricity | 18 | Expired |
| US5323749A | Method for electrically contacting an electrically actuable fuel injection valve | Electricity | 17 | Expired |
| US4477027A | Electromagnetically actuatable valve, in particular a fuel injection valve for fuel injection systems | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4416238A | Fuel injection system | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US4527744A | Electromagnetically actuatable valve | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4471914A | Electromagnetically actuatable valve | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4860710A | Fuel supply line | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US5934252A | Fuel injection system | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US5584704A | Device for the common electrical contacting of a plurality of electrically excitable aggregates of internal combustion engines | Electricity | 14 | Expired |
| US4747384A | Fuel injection system | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US6615807B2 | Method and apparatus for cooling a fuel injection system | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4800912A | Electromagnetically operable valve and method for producing such a valve | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4455982A | Electromagnetically actuatable valve | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4704591A | Electromagnetically actuable fuel injection valve and method for its manufacture | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4436071A | Electromagnetically actuatable valve, in particular a fuel injection valve | Mechanical Engineering; Lighting; Heating | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.