John Griffiths
6Patents
3h-index
11Co-inventors
54Inventor score
Filing activity: Jul 28, 1978 → Dec 31, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6793723B2 | Homogeneous photosensitive optically variable ink compositions for ink jet printing | Chemistry; Metallurgy | 22 | Expired |
| US4228736A | Printing apparatus | Human Necessities | 3 | Expired |
| US4780412A | Fibrinolytic enzymes produced from established non-cancerous cell lines | Physics | 3 | Expired |
| US7153350B2 | Water soluble colorants for ink jet printing | Chemistry; Metallurgy | 3 | Expired |
| US6458966B1 | Dye intermediate and method | Chemistry; Metallurgy | 2 | Expired |
| US8026306B2 | Red-luminescent ink jet printing compositions and methods for improved waterfastness | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.