Bernhard Hoffmann
47Patents
15h-index
35Co-inventors
81Inventor score
Filing activity: Oct 30, 1989 → Feb 11, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6202776A | Drive system, especially for a motor vehicle, and method of operating same | Emerging Cross-Sectional Technologies | 91 | Expired |
| US6487998B1 | Drive system, particularly for a motor vehicle, and process for operating it | Emerging Cross-Sectional Technologies | 72 | Expired |
| US6149544A | Drive system for a motor vehicle with a drive unit and electric machine, and method of operating the system | Emerging Cross-Sectional Technologies | 68 | Expired |
| US6365983B1 | Starter/generator for an internal combustion engine, especially an engine of a motor vehicle | Emerging Cross-Sectional Technologies | 56 | Expired |
| US6405701B1 | System for actively reducing rotational nonuniformity of a shaft, in particular, the drive shaft of an internal combustion engine, and method for this | Emerging Cross-Sectional Technologies | 44 | Expired |
| US6138629A | System for actively reducing radial vibrations in a rotating shaft, and method of operating the system to achieve this | Emerging Cross-Sectional Technologies | 43 | Expired |
| US6177734A | Starter/generator for an internal combustion engine, especially an engine of a motor vehicle | Emerging Cross-Sectional Technologies | 39 | Expired |
| US6148784A | Drive systems, especially for a motor vehicle, and method of operating same | Emerging Cross-Sectional Technologies | 34 | Expired |
| US5136217A | Method for switching current to successive sections of the stator of a long linear motor | Emerging Cross-Sectional Technologies | 28 | Expired |
| US6158405A | System for actively reducing rotational nonuniformity of a shaft, in particular, the drive shaft of an internal combustion engine, and method of operating the system | Emerging Cross-Sectional Technologies | 27 | Expired |
| US5542356A | Track-guided transport vehicle | Emerging Cross-Sectional Technologies | 27 | Expired |
| US6281646A | Drive system with drive-motor, electric machine and battery | Emerging Cross-Sectional Technologies | 22 | Expired |
| US7279820B2 | Transversal flux machine | Electricity | 22 | Expired |
| US6199650A | Drive system, especially for a motor vehicle, and method of operating same | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5308463A | Preparation of a firm bond between copper layers and aluminum oxide ceramic without use of coupling agents | Chemistry; Metallurgy | 16 | Expired |
| US6168231A | Two piece plastic vehicle panel construction | Performing Operations; Transporting | 15 | Expired |
| US5698912A | Brushless motor with torque and speed proportional coolant flow | Electricity | 15 | Expired |
| US6753674B2 | Half-bridge subassembly | Electricity | 15 | Expired |
| US6483197B1 | Drive system, electric machine for use in a drive system, and method for operating an electric machine in a drive system | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7049716B2 | Fluid cooled electric machine | Electricity | 10 | Expired |
| US6755161B2 | Gas exchange valve drive for a valve-controlled combustion engine | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US7014587B2 | Power shift automatic gearbox for motor vehicles | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US5770904A | Electric motor | Electricity | 6 | Expired |
| US6279336A | Assembly for switching electrical power | Electricity | 5 | Expired |
| US6930428B2 | Subassembly of an electrical machine and electrical machine with one such subassembly | Electricity | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.