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Hangzhou, China

Guoqiang Liu

USPTO Granted Patents = 12 (Patent Applications = 1)

Average Co-Inventor Count = 2.7

ph-index = 2

Forward Citations = 42(Granted Patents)

Location History:

Zhejiang, CN (2018)
Hangzhou, CN (2018 - 2024)

Company Filing History:

Joulwatt Technology Co., Ltd.

Joulwatt Technology (hangzhou) Co., Ltd.

Years Active: 2018-2025

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12 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12484121 - Lighting circuit and control method thereof (2025-11-25),

2. 12471194 - Driving control circuit of power transistor, lighting control circuit and lighting circuit (2025-11-11),

3. 12294301 - Power supply circuit and light-emitting diode (LED) driving system using power supply circuit (2025-05-06),

4. 12119749 - Flyback converter, constant-current control method, and lighting system (2024-10-15),

5. 11895751 - Leakage protection circuit and dimming drive circuit (2024-02-06),

6. 11895747 - Illumination device, LED driver circuit, bleeder control circuit and control method (2024-02-06),

7. 11805581 - Buffer circuit for light emitting diode (LED) drive circuit, and LED drive circuit and control method thereof (2023-10-31),

8. 11563381 - Control method of switching circuit, control circuit of switching circuit, and switching circuit (2023-01-24),

9. 10506684 - Protection circuit and illumination driving circuit (2019-12-10),

10. 10327296 - Dimming circuit, dimming method and LED driving circuit (2019-06-18),

11. 10153684 - Bleeder circuit (2018-12-11),

12. 10143051 - Bleeder circuit and control method thereof, and LED control circuit (2018-11-27),

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