David M. Attridge
11Patents
6h-index
15Co-inventors
63Inventor score
Filing activity: Jan 31, 1979 → Sep 3, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5138178A | Photoelectric paper basis weight sensor | Emerging Cross-Sectional Technologies | 48 | Expired |
| US5775690A | Two step optimized stalled roll registration and deskew | Performing Operations; Transporting | 26 | Expired |
| US5720478A | Gateless duplex inverter | Emerging Cross-Sectional Technologies | 22 | Expired |
| US6055409A | Sheet pre-transfer device | Physics | 17 | Expired |
| US6286831A | Optimized passive gate inverter | Performing Operations; Transporting | 14 | Expired |
| US6186496A | Optimized passive gate inverter | Performing Operations; Transporting | 6 | Expired |
| US4493483A | Inverter-reverser for a reproduction machine | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5608511A | Vacuum transport apparatus | Physics | 4 | Expired |
| US5156392A | Moving edge side registration device | Performing Operations; Transporting | 3 | Expired |
| US6808171B2 | Inverter having a slow speed drive mode for improved reliability | Performing Operations; Transporting | 3 | Expired |
| US7566055B2 | Substrate inverter systems and methods | Emerging Cross-Sectional Technologies | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.