David Shadwick
12Patents
6h-index
31Co-inventors
66Inventor score
Filing activity: Jul 18, 1983 → Jan 19, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6796644B1 | Ink source regulator for an inkjet printer | Performing Operations; Transporting | 44 | Expired |
| US7878344B2 | Tuck and store rack | Mechanical Engineering; Lighting; Heating | 43 | Active |
| USD309323S | Cartridge for an electrophotographic printer | General | 25 | Expired |
| US7775498B2 | Anti-tip device for an appliance with an interlock switch | Textiles; Paper | 20 | Active |
| US4523868A | Ribbon feed cartridge | Performing Operations; Transporting | 10 | Expired |
| US6263182A | Fuser oil dispenser for an image forming apparatus | Physics | 9 | Expired |
| US7245378B2 | Measuring laser light transmissivity in a to-be-welded region of a work piece | Physics | 5 | Expired |
| US6998008B2 | Method and apparatus for attaching an ink jet filter to an ink cartridge | Performing Operations; Transporting | 2 | Expired |
| US6980296B2 | Measuring laser light transmissivity in a to-be-welded region of a work piece | Physics | 2 | Expired |
| US4840503A | Stuffed chamber ribbon cartridge | Performing Operations; Transporting | 1 | Expired |
| US8212575B2 | Device for analyzing size and location of conductive item | Emerging Cross-Sectional Technologies | 0 | Active |
| US8997331B2 | Method of fabricating an analyzer | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.