Brian D. Gragg
15Patents
10h-index
22Co-inventors
72Inventor score
Filing activity: May 11, 1987 → Apr 28, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5467118A | Ink cartridge for a hard copy printing or plotting apparatus | Performing Operations; Transporting | 201 | Expired |
| US5757390A | Ink volume sensing and replenishing system | Performing Operations; Transporting | 88 | Expired |
| US5519422A | Method and device for preventing unintended use of print cartridges | Performing Operations; Transporting | 71 | Expired |
| US5886718A | Ink-jet off axis ink delivery system | Physics | 52 | Expired |
| US5754207A | Volume indicating ink reservoir cartridge system | Performing Operations; Transporting | 48 | Expired |
| US5912688A | Spring bag based, off axis ink delivery system and pump trigger | Performing Operations; Transporting | 42 | Expired |
| US5877795A | Methods and designs to purge air from ink tubes during initial startup | Performing Operations; Transporting | 27 | Expired |
| US4806032A | Conical vent containing capillary bore | Emerging Cross-Sectional Technologies | 26 | Expired |
| US5969739A | Ink-jet pen with rectangular ink pipe | Performing Operations; Transporting | 25 | Expired |
| US5574490A | Ink jet hard copy apparatus ink cartridge | Performing Operations; Transporting | 22 | Expired |
| USD432999S | Integrated localization panel | General | 5 | Expired |
| US7712862B1 | Ink stalagmite detection | Performing Operations; Transporting | 3 | Active |
| US7301657B2 | Printer including video decoder | Electricity | 0 | Expired |
| US7774557B2 | Storage access system and method for image forming device | Physics | 0 | Active |
| US8702198B2 | Image forming apparatus and methods thereof | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.