Detlev Abraham
6Patents
5h-index
9Co-inventors
56Inventor score
Filing activity: May 28, 1985 → Jan 25, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7775327B2 | Method and system for stopping elevators using AC motors driven by static frequency converters | Performing Operations; Transporting | 44 | Active |
| US4631467A | Escalator passenger flow control | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5482153A | Operation panel for a passenger conveying device | Performing Operations; Transporting | 9 | Expired |
| US5431271A | Indicator for a passenger conveying device | Physics | 7 | Expired |
| US5697485A | Passenger conveyor control system having decentralized inputs and outputs | Performing Operations; Transporting | 5 | Expired |
| US5704464A | Passenger sensor for an escalator or moving walk | Performing Operations; Transporting | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.