Karl Lerchbaum
6Patents
2h-index
11Co-inventors
48Inventor score
Filing activity: Dec 10, 1984 → Dec 9, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4958696A | Switching arrangement for the hydraulic drive means of a full-track vehicle | Performing Operations; Transporting | 6 | Expired |
| US5178494A | Roof support for underground excavations such as coal mines | Fixed Constructions | 6 | Expired |
| US4613256A | Supporting frame | Fixed Constructions | 2 | Expired |
| US6428109B1 | Mining machine with sliding cutting tool assembly | Physics | 2 | Expired |
| US7316456B2 | Roadheading or mining machine with roof bolt drilling and setting devices | Fixed Constructions | 2 | Expired |
| US6785988B2 | Driving or mining machine | Fixed Constructions | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.