John Usher
9Patents
9h-index
6Co-inventors
58Inventor score
Filing activity: Jul 26, 1993 → Nov 9, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6602253B2 | Rod to rod connector | Emerging Cross-Sectional Technologies | 94 | Expired |
| US7744632B2 | Rod to rod connector | Human Necessities | 73 | Active |
| US7628799B2 | Rod to rod connector | Human Necessities | 70 | Active |
| US7029474B2 | Rod to rod connector | Emerging Cross-Sectional Technologies | 70 | Expired |
| US6958066B2 | Rod to rod connector | Emerging Cross-Sectional Technologies | 58 | Expired |
| US6960212B2 | Rod to rod connector | Emerging Cross-Sectional Technologies | 48 | Expired |
| US7887548B2 | Screw insertion guide tube with window | Human Necessities | 18 | Active |
| US8394131B2 | Occipitocervical fixation system | Human Necessities | 13 | Active |
| US5474463A | Bay for receiving removable peripheral device | Physics | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.