Mark A. Marshall
7Patents
3h-index
5Co-inventors
50Inventor score
Filing activity: Jun 30, 1989 → May 10, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5941145A | Tube squaring tool | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5743539A | Quick setting and release actuator for work holder | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5083484A | Pipe end preparation tool having improved torque reacting and clamping capabilities | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5934688A | Quick setting and release actuator for work holder | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4955263A | Pipe end preparation tool having improved torque reacting and clamping capabilities | Emerging Cross-Sectional Technologies | 2 | Expired |
| USD407724S | Tube squaring tool | General | 1 | Expired |
| US10059181B2 | High-tech cover | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.