ADDA CORP.
25Patents
17Active
25Granted
45Portfolio score
Filing activity: Mar 23, 2000 → Jun 15, 2016 · 8 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6655929B2 | Cooling fan dust guard | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US6955212B1 | Water-cooler radiator module | Electricity | 24 | Expired |
| US6616422B2 | Cooling fan dust structure for keeping off flying dust from entering into spindle | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US6332251A | Retaining device for a heat sink | Emerging Cross-Sectional Technologies | 18 | Expired |
| USD804434S1 | Electronic component heatsink assembly | General | 18 | Active |
| US7862309B2 | Thin fan structure | Mechanical Engineering; Lighting; Heating | 9 | Active |
| US7646162B2 | Control circuit for fan operating | Electricity | 5 | Active |
| US8177486B2 | Fan frame | Electricity | 4 | Active |
| US7386224B2 | DC brushless fan motor driving circuit | Electricity | 4 | Active |
| US8961107B2 | Heat-dissipation fan | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US8907607B1 | Soft start circuit for a forward/reverse rotation fan | Emerging Cross-Sectional Technologies | 3 | Active |
| US7708466B2 | Lubricated bushing | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US7348740B2 | Motor control circuit for forward/reverse rotation | Electricity | 2 | Active |
| US8251641B2 | Stack of fan case | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US8421476B2 | Fan failure detector | Physics | 1 | Active |
| US7385369B2 | AC fan motor driving circuit having capability of monitoring the rotation rate and status of the AC fan motor | Emerging Cross-Sectional Technologies | 1 | Active |
| US7282888B2 | AC fan motor driving circuit having detecting current wave capability | Electricity | 1 | Expired |
| US6585497B2 | Cooling fan dust seal | Mechanical Engineering; Lighting; Heating | 0 | Expired |
| US8462470B2 | Auto power-off and actuation circuit for a fan | Electricity | 0 | Active |
| US8834135B2 | Heat-dissipation fan | Physics | 0 | Active |
| US6597591B2 | Transformerless AC/DC converter | Electricity | 0 | Expired |
| US8708653B2 | Fan structure having a first impeller and a second impeller | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US7276875B1 | Multimode integrated modulation circuit for controlling fan rotating speed | Electricity | 0 | Expired |
| US7401474B2 | Thermal food storage cabinet | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US8540494B2 | Fan structure and stator module therefor | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.