David Ashcraft
2Patents
2h-index
4Co-inventors
27Inventor score
Filing activity: Oct 7, 2004 → Aug 30, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7530407B2 | Rotary coring device and method for acquiring a sidewall core from an earth formation | Fixed Constructions | 10 | Active |
| US7373994B2 | Self cleaning coring bit | Fixed Constructions | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.