Bernd Ackermann
52Patents
13h-index
74Co-inventors
87Inventor score
Filing activity: Mar 22, 1985 → Jun 4, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5633555A | Magnetic drive arrangement comprising a plurality of magnetically cooperating parts which are movable relative to one another | Electricity | 85 | Expired |
| US9622317B2 | LED retrofit lamp | Emerging Cross-Sectional Technologies | 33 | Active |
| US5714828A | Electric motor having a stator and a rotor | Electricity | 29 | Expired |
| US5927249A | Electromotive adjustment device | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US5624100A | Device for actuating a control member | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US7893661B2 | Driver circuit arrangement | Emerging Cross-Sectional Technologies | 22 | Active |
| US5604390A | Permanent magnet motor with radically magnetized isotropic permanent magnet cylindrical yoke | Electricity | 22 | Expired |
| US4567411A | High frequency pulse width modulation | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5076399A | Elevator start control technique for reduced start jerk and acceleration overshoot | Performing Operations; Transporting | 20 | Expired |
| US5994809A | Magnetic drive arrangement | Electricity | 19 | Expired |
| US9375281B2 | Light application apparatus for applying light to an object | Human Necessities | 18 | Active |
| US5157228A | Adjusting technique for a digital elevator drive system | Performing Operations; Transporting | 18 | Expired |
| US8076872B2 | Light emitting diode circuit and arrangement and device | Emerging Cross-Sectional Technologies | 15 | Active |
| US5418414A | Electric motor with permanent-magnet excitation | Electricity | 12 | Expired |
| US6109589A | Electrical actuator with a stabilizing magnetostatic torque, and a throttle device provided with such an actuator | Electricity | 11 | Expired |
| US7947947B2 | LED-based light module package including a ceramic layer and a light sensor | Electricity | 11 | Active |
| US7932799B2 | Transformer | Electricity | 11 | Active |
| US7956714B2 | High voltage transformer | Electricity | 11 | Active |
| US5870010A | Actuator with minimized auxiliary magnet, and throttle device provided with such an actuator | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US7417523B2 | Ultra-thin flexible inductor | Emerging Cross-Sectional Technologies | 8 | Expired |
| US8115779B2 | Color control of white LED lamps | Emerging Cross-Sectional Technologies | 5 | Active |
| US8523924B2 | Colored and white light generating lighting device | Emerging Cross-Sectional Technologies | 5 | Active |
| US6147427A | Electromotive adjustable drive | Electricity | 5 | Expired |
| US6734773B2 | Transformer with integrated inductor | Electricity | 5 | Expired |
| US5912515A | Motor with motor parts which are movable relative to one another | Electricity | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.