Erik Appel
7Patents
2h-index
19Co-inventors
37Inventor score
Filing activity: Jun 30, 2003 → Sep 21, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6972385B2 | Operating device for manual actuation of hoisting equipment | Electricity | 10 | Expired |
| US7234400B2 | Crane trolley with low overall height | Performing Operations; Transporting | 4 | Expired |
| US7068009B2 | Drive arrangement, especially for a lifting mechanism and/or a traveling drive | Electricity | 2 | Expired |
| US7504602B2 | Suspended control device | Performing Operations; Transporting | 2 | Expired |
| US6964409B2 | Chain block | Performing Operations; Transporting | 1 | Expired |
| US7422542B2 | Method of monitoring a chain pulley block and chain pulley block apparatus | Performing Operations; Transporting | 1 | Active |
| US7126307B2 | Interface circuit for actuating an electrical device and circuit arrangement for actuating an electric motor therewith | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.