GRENERGY OPTO INC.
31Patents
31Active
31Granted
52Portfolio score
Filing activity: Nov 18, 2008 → Jul 16, 2014 · 20 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7876085B2 | Quasi-resonant valley voltage detecting method and apparatus | Physics | 10 | Active |
| US7719325B1 | Active-load dominant circuit for common-mode glitch interference cancellation | Electricity | 10 | Active |
| US8068354B2 | Current-level controlling device for a power supply device and related power supply device | Electricity | 6 | Active |
| US8305047B2 | Safety capacitor discharging method and apparatus for AC-to-DC converters | Electricity | 6 | Active |
| US8253350B2 | Open loop LED driving circuit | Emerging Cross-Sectional Technologies | 5 | Active |
| US8217583B2 | Gas-discharge lamp controller utilizing a novel reheating frequency generation mechanism | Electricity | 5 | Active |
| US7911815B2 | Primary-side feedback control device and related method for a power converter | Electricity | 4 | Active |
| US8314515B2 | System corrected programmable integrated circuit | Physics | 4 | Active |
| US8964417B1 | Power controllers and control methods suitable for operating a switched mode power supply in quasi-resonant mode | Emerging Cross-Sectional Technologies | 3 | Active |
| US9209696B1 | Switching mode power supply capable of achieving soft transition for valley switching, or performing valley locking | Emerging Cross-Sectional Technologies | 3 | Active |
| US7791913B1 | Secondary side switch-off timing adjusting method, apparatus, and system using same | Electricity | 3 | Active |
| US8988905B2 | PWM controller detecting temperature and AC line via a single pin and power converter using same | Emerging Cross-Sectional Technologies | 2 | Active |
| US8203812B2 | Secondary side protection method and apparatus for a switching power converter | Emerging Cross-Sectional Technologies | 2 | Active |
| US9112418B2 | Controller for a switched mode power supply having an integrated circuit with multifunction pin | Electricity | 1 | Active |
| US8067904B2 | Electronic ballast with dimming control from power line sensing | Electricity | 1 | Active |
| US8659271B2 | Fixed-on-time controller utilizing an adaptive saw signal for discontinuous mode PFC power conversion | Emerging Cross-Sectional Technologies | 1 | Active |
| US8018742B2 | Full-range-duty PWM signal generation method, apparatus, and system using same | Emerging Cross-Sectional Technologies | 1 | Active |
| US7872842B2 | Overcurrent protection device for a power supply device and related power supply device | Electricity | 1 | Active |
| US7983062B2 | Minimum on-time reduction method, apparatus, and system using same | Electricity | 1 | Active |
| US7999495B2 | Electronic ballast with dimming control from power line sensing | Electricity | 0 | Active |
| US7999494B2 | Electronic ballast with dimming control from power line sensing | Electricity | 0 | Active |
| US8058857B2 | Digitally controlled switched-mode power supply | Electricity | 0 | Active |
| US8129968B2 | Integrated circuit for system calibration | Physics | 0 | Active |
| US8450940B2 | Gas-discharge lamp controller utilizing a novel preheating phase control mechanism | Electricity | 0 | Active |
| US8064226B2 | Control circuit with frequency compensation | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.