Christopher Pietrzykowski
4Patents
4h-index
6Co-inventors
43Inventor score
Filing activity: Apr 28, 1993 → Nov 30, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5969306A | Elevator car call buttons indicating car floor position | Performing Operations; Transporting | 31 | Expired |
| US5407028A | Tested and redundant elevator emergency terminal stopping capability | Performing Operations; Transporting | 27 | Expired |
| US7793762B2 | Destination entry passenger interface with multiple functions | Performing Operations; Transporting | 11 | Active |
| US5631452A | System for position loss recovery for an elevator car | Performing Operations; Transporting | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.