Ruth E. Mitchener Keffer
5Patents
4h-index
7Co-inventors
42Inventor score
Filing activity: Feb 13, 2013 → Nov 16, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9156147B2 | Quick change bit holder with ring magnet | Emerging Cross-Sectional Technologies | 22 | Active |
| US10150205B2 | Fastening tools with floating magnet sleeves | Emerging Cross-Sectional Technologies | 19 | Active |
| US9227309B2 | Quick change bit holder with ring magnet | Emerging Cross-Sectional Technologies | 14 | Active |
| US10556329B2 | Tool bits with floating magnet sleeves | Emerging Cross-Sectional Technologies | 7 | Active |
| US10040179B2 | Fastener tool assemblies | Emerging Cross-Sectional Technologies | 4 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.