John Hartzell
4Patents
3h-index
5Co-inventors
47Inventor score
Filing activity: May 20, 1983 → Feb 21, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4607553A | Self-clearing punch with removable blade | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6224463A | Workpiece finishing system and method of operating same | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4494426A | Punch with removable blade | Emerging Cross-Sectional Technologies | 8 | Expired |
| US9422950B2 | Floating optical sensor mount | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.