Digital Projection Limited
🏢 View company profile →19Patents
4Active
19Granted
37Portfolio score
Filing activity: Jan 11, 1996 → Aug 8, 2008 · 4 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6341876B1 | Illumination system | Physics | 128 | Expired |
| US6276801A | Display system | Electricity | 109 | Expired |
| US5986640A | Display device using time division modulation to display grey scale | Physics | 95 | Expired |
| US6250763A | Projection device | Physics | 38 | Expired |
| US5865520A | Projection system | Physics | 27 | Expired |
| US6034660A | Spatial light modulators | Electricity | 23 | Expired |
| US6114807A | Light source in the form of an arc lamp, a sealed beam light source, a light source including a reflector and a mounting means | Electricity | 19 | Expired |
| US6057816A | Display device driving circuitry and method | Physics | 15 | Expired |
| US6064366A | Spatial light modulators | Electricity | 14 | Expired |
| US6561675B1 | Rectangular beam generating light source | Electricity | 13 | Expired |
| US6184852A | Spatial light modulators | Electricity | 12 | Expired |
| US5874805A | Electrode structure including a rod comprising refractory metal and having a greater thermal conductivity material | Electricity | 7 | Expired |
| US6243057A | Deformable mirror device driving circuit and method | Electricity | 5 | Expired |
| US6580470B1 | Display apparatus for displaying an image representative of an interlaced video signal | Electricity | 4 | Expired |
| US8297759B2 | Display device with pulsed light source | Physics | 4 | Active |
| US7796383B2 | Heat transfer apparatus | Electricity | 4 | Active |
| US5869920A | Light source in the form of a sealed beam ARC lamp including three reflective surfaces | Electricity | 3 | Expired |
| US7988301B2 | Heat transfer apparatus | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US7738177B2 | Light source | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.