UNITY OPTO TECHNOLOGY CO., LTD.
70Patents
57Active
70Granted
52Portfolio score
Filing activity: Jul 23, 1999 → Feb 5, 2020 · 10 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7119422B2 | Solid-state semiconductor light emitting device | Electricity | 79 | Expired |
| US6736525B2 | Energy efficient tubular light | Mechanical Engineering; Lighting; Heating | 75 | Expired |
| US8941328B2 | Variable power dimming control circuit | Emerging Cross-Sectional Technologies | 38 | Active |
| USD728480S1 | LED lamp holder | General | 36 | Active |
| US6525464B1 | Stacked light-mixing LED | Electricity | 24 | Expired |
| USD548704S1 | Edge-emitting light-emitting diode | General | 24 | Expired |
| US6639356B2 | Heat dissipating light emitting diode | Electricity | 18 | Expired |
| US8941323B1 | Ceiling lamp adopting non-separating driver circuit | Emerging Cross-Sectional Technologies | 18 | Active |
| US9072149B2 | LED driving device with open circuit protection and color temperature and brightness adjustment | Emerging Cross-Sectional Technologies | 17 | Active |
| US8496349B2 | Uniform light emitting lamp structure | Mechanical Engineering; Lighting; Heating | 17 | Active |
| US6956243B1 | Light emitting diode | Electricity | 16 | Expired |
| USD771858S1 | LED lamp | General | 11 | Active |
| US8408734B2 | Structure of lighting device | Mechanical Engineering; Lighting; Heating | 10 | Active |
| USD739976S1 | Foldable desk lamp | General | 10 | Active |
| US7309152B2 | Light source structure of backlight module | Physics | 9 | Expired |
| US10158054B1 | LED lighting device | Emerging Cross-Sectional Technologies | 9 | Active |
| US7871180B2 | Structure of lighting bar assembly | Mechanical Engineering; Lighting; Heating | 8 | Active |
| USD794866S1 | LED bulb lamp cover | General | 7 | Active |
| US9976732B2 | Flat panel lighting device and driving circuitry | Emerging Cross-Sectional Technologies | 6 | Active |
| US8047685B2 | Adjustable lighting device | Mechanical Engineering; Lighting; Heating | 6 | Active |
| US7205575B2 | High brightness light emitting diode | Electricity | 6 | Expired |
| USD786460S1 | LED package | General | 5 | Active |
| US10422518B2 | Flat panel lighting device | Emerging Cross-Sectional Technologies | 5 | Active |
| US9591399B1 | Automatically controlled directional speaker, and lamp thereof | Electricity | 5 | Active |
| US8876316B2 | Backlight module | Physics | 4 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.