Helmut Meyer
12Patents
6h-index
17Co-inventors
59Inventor score
Filing activity: Aug 15, 1991 → Feb 7, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5307920A | Moving handrail drive | Performing Operations; Transporting | 17 | Expired |
| US5117960A | Linear belt handrail drive | Performing Operations; Transporting | 15 | Expired |
| US5566810A | Reduction of handrail vibration in passenger conveyors | Performing Operations; Transporting | 11 | Expired |
| US5381881A | Step platform for an escalator | Performing Operations; Transporting | 9 | Expired |
| US6457573B1 | Belt drive back up device for escalator drive | Performing Operations; Transporting | 8 | Expired |
| US7497315B2 | Escalator drive system failure detection and brake activation | Performing Operations; Transporting | 7 | Expired |
| US6527099B2 | Belt drive back up device for escalator drive | Performing Operations; Transporting | 6 | Expired |
| US7168547B2 | Passenger conveyor drive machine | Performing Operations; Transporting | 6 | Expired |
| US7222713B2 | Step attachment on the step chain of an escalator | Performing Operations; Transporting | 5 | Expired |
| US7140484B2 | Moving flange for passenger conveyors | Performing Operations; Transporting | 5 | Expired |
| US5542521A | Step Platform for an escalator | Performing Operations; Transporting | 2 | Expired |
| US8016097B2 | Escalator linear belt handrail drive | Performing Operations; Transporting | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.