Ralf Dreibholz
62Patents
11h-index
49Co-inventors
78Inventor score
Filing activity: Jan 10, 1997 → Nov 7, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6217478A | Position and/or angle control method and device without absolute positions sensor | Physics | 148 | Expired |
| US6705416B1 | Hybrid propulsion system comprising shiftable clutches provided for a motor vehicle | Emerging Cross-Sectional Technologies | 67 | Expired |
| US7951043B2 | Method and device for controlling the oil supply of an automatic gearbox and a starting element | Mechanical Engineering; Lighting; Heating | 27 | Active |
| US6962549B2 | Transmission, particularly automatic transmission, with several shifting elements | Emerging Cross-Sectional Technologies | 20 | Expired |
| US7645209B2 | Method for operating a parallel hybrid powertrain | Emerging Cross-Sectional Technologies | 18 | Active |
| US5795265A | Process for controlling an automatic transmission | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US6966860B2 | Automatic transmission for motor vehicles | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7762922B2 | Method for operating a parallel hybrid drive train of a vehicle | Emerging Cross-Sectional Technologies | 15 | Active |
| US5997433A | Transmission control system for reducing thermal load on engaging elements | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US7108115B2 | Transmission and method for controlling a transmission with at least one shift control element | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US6101438A | Process for automatically co-ordinating the filling operation of shift elements | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US7004878B2 | Automated multiple-gear transmission | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6244402A | Power shift transmission for motor vehicles | Performing Operations; Transporting | 9 | Expired |
| US6597978B1 | Method for controlling an automatic transmission | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US5911648A | Automatic transmission control method including shifting aberration regulating phase | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US7469169B2 | Method for control of input power distribution in a motor vehicle with hybrid engine drive | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7744502B2 | Method for driving a parallel hybrid drive train of a motor vehicle with several drive units | Emerging Cross-Sectional Technologies | 7 | Active |
| US6366843B1 | Method for controlling an automatic transmission | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US6993991B2 | Gear selector device for a motor vehicle | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6081760A | Error recognition process for automatic gear boxes transmission | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US6730001B1 | Method and device for controlling and adjusting a clutch in an infinitely variable automatic gearbox | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US9182013B2 | Power-shiftable transmission | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US6708097B1 | Method and device for controlling and adjusting a clutch in an automotive automatic stepped power shift gearbox | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US8578801B2 | Load-shiftable parallel shift transmission and double clutch transmission | Emerging Cross-Sectional Technologies | 5 | Active |
| US6969338B2 | Method for controlling and regulating a drive train | Emerging Cross-Sectional Technologies | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.