John Griffiths
14Patents
6h-index
19Co-inventors
63Inventor score
Filing activity: Oct 26, 1987 → Jul 10, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4802243A | Acoustic headgear-sun visor assembly | Emerging Cross-Sectional Technologies | 46 | Expired |
| US5426143A | Thermochromic infrared dyes | Physics | 13 | Expired |
| US7371744B2 | Biologically active methylene blue derivatives | Human Necessities | 11 | Expired |
| US8188074B2 | Biologically active methylene blue derivatives | Human Necessities | 10 | Active |
| US5952073A | Dye composition for optical recording media having selected anions | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7407948B2 | Photosensitisers and their uses | Chemistry; Metallurgy | 6 | Active |
| US7732439B2 | Biologically active methylene blue derivatives | Human Necessities | 4 | Active |
| US7855197B2 | Biologically active methylene blue derivatives | Human Necessities | 3 | Active |
| US7915254B2 | Biologically active methylene blue derivatives | Human Necessities | 3 | Active |
| US5525265A | Liquid crystalline and infrared-sensitive liquid-crystalline polyesters | Physics | 2 | Expired |
| US4838659A | Liquid crystal displays and fluorescent dyes for use therein | Chemistry; Metallurgy | 2 | Expired |
| US7276494B2 | Photosensitisers | Human Necessities | 2 | Expired |
| US5250392A | Process of developing a negative-working radiation-sensitive photoresist containing cyclized rubber polymer and contrast enhancing azo dye | Physics | 2 | Expired |
| US5206110A | Negative-working radiation-sensitive mixtures containing cyclized rubber polymer and contrast enhancing azo dye | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.