OPTO TECH CORP.
70Patents
26Active
70Granted
46Portfolio score
Filing activity: Jun 6, 1990 → Aug 31, 2020 · 6 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6480389B1 | Heat dissipation structure for solid-state light emitting device package | Electricity | 202 | Expired |
| US5198803A | Large scale movie display system with multiple gray levels | Physics | 173 | Expired |
| US7217022B2 | Optic fiber LED light source | Physics | 106 | Expired |
| US7303310B2 | Structure for a high efficiency and water-proof lighting device | Mechanical Engineering; Lighting; Heating | 54 | Expired |
| US6835960B2 | Light emitting diode package structure | Electricity | 42 | Expired |
| US7679096B1 | Integrated LED heat sink | Mechanical Engineering; Lighting; Heating | 40 | Expired |
| US6208073A | Smart light emitting diode cluster and system | Emerging Cross-Sectional Technologies | 38 | Expired |
| US6716654B2 | Light-emitting diode with enhanced brightness and method for fabricating the same | Electricity | 38 | Expired |
| US5347869A | Structure of micro-pirani sensor | Physics | 30 | Expired |
| US5659127A | Substrate structure of monolithic gas sensor | Physics | 27 | Expired |
| US5820264A | Tympanic thermometer arrangement | Physics | 26 | Expired |
| US5360411A | Liquid medicine injecting device | Human Necessities | 23 | Expired |
| US6759145B2 | White light emitting organic electroluminescent device and method for fabricating the same | Emerging Cross-Sectional Technologies | 22 | Expired |
| US7300185B1 | Quadrilateral symmetrical light source | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US6933522B2 | Organic electroluminescent device and method for producing the same | Electricity | 21 | Expired |
| US7542861B1 | Method and system for LED calibration | Physics | 21 | Active |
| US6603151B2 | Method and structure for packaging a high efficiency electro-optics device | Electricity | 21 | Expired |
| US6004471A | Structure of the sensing element of a platinum resistance thermometer and method for manufacturing the same | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6281428A | Photovoltaic generator | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6903381B2 | Light-emitting diode with cavity containing a filler | Electricity | 17 | Expired |
| US6686218B2 | Method for packaging a high efficiency electro-optics device | Electricity | 15 | Expired |
| US5860741A | Absolute radiation thermometer | Physics | 14 | Expired |
| US6383061B1 | Procedure of and device for processing optical lenses | Performing Operations; Transporting | 12 | Expired |
| US5951376A | Procedure of and device for processing optical lenses | Performing Operations; Transporting | 11 | Expired |
| US7862206B2 | Adjustable light-emitting diode display module | Physics | 9 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.