Norbert Ackermann
17Patents
9h-index
22Co-inventors
72Inventor score
Filing activity: Mar 12, 1987 → Nov 18, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4986393A | Adjustable vibration dampers for motor vehicles | Performing Operations; Transporting | 106 | Expired |
| US4802561A | Adjustable shock absorber | Mechanical Engineering; Lighting; Heating | 85 | Expired |
| US4880086A | Adjustable vibration damper | Mechanical Engineering; Lighting; Heating | 48 | Expired |
| US5078241A | Controllable vibration dampers for motor vehicles | Performing Operations; Transporting | 39 | Expired |
| US5078240A | Adjustable vibration damper with valve body in piston having directional flow control | Performing Operations; Transporting | 30 | Expired |
| US5251730A | Adjustable vibration damper | Performing Operations; Transporting | 17 | Expired |
| US5265703A | Adjustable hydraulic vibration damper for motor vehicles | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6119831A | Controllable vibration damper for motor vehicles | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US4766647A | Apparatus and method for measuring a property of a continuous strand of fibrous materials | Physics | 11 | Expired |
| US7918437B2 | Pressure vessel | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US7487863B2 | Pressure container in a vibration damper | Emerging Cross-Sectional Technologies | 1 | Expired |
| US10427485B2 | Method of operating a motor vehicle, and motor vehicle | Performing Operations; Transporting | 1 | Active |
| US9004425B2 | Damping device having a part mounted thereon | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US8087646B2 | Hydropneumatic suspension with load-dependent damping control | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10434834B2 | Method for operating a motor vehicle, method for roll compensation of a motor vehicle, and motor vehicle | Performing Operations; Transporting | 0 | Active |
| US8533924B2 | Process for producing a pressure vessel | Emerging Cross-Sectional Technologies | 0 | Active |
| US7681699B2 | Self-pumping hydropneumatic vibration damper | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.