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Hsinchu, Taiwan

Grenergy Opto Inc.

USPTO Granted Patents = 31

% Expired Patents = 25.8

Forward Citations = 74

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25 inventors (with patents filed for the assignee):

Yen-Hui Wang (12 out of 28 patents)

Chia-Chieh Hung (10 out of 15 patents)

Ko-Ming Lin (9 out of 9 patents)

4. Yen-Ping Wang (7 out of 68 patents)

5. Pei-Yuan Chen (6 out of 19 patents)

6. Wei-Chuan Su (6 out of 13 patents)

7. Chi-Hao Wu (6 out of 6 patents)

8. Yi-Lun Shen (4 out of 22 patents)

9. Chin-Yen Lin (4 out of 11 patents)

10. Jian-Shen Li (4 out of 5 patents)

11. Yu-Yun Huang (3 out of 10 patents)

12. Ren-Yi Chen (2 out of 19 patents)

13. Chun-Liang Lin (2 out of 35 patents)

14. Huang-Chi Lin (2 out of 2 patents)

15. Ko-Yen Lee (2 out of 6 patents)

Core Competencies:

Power Supply

PWM Controller

Valley Switching

Overvoltage Protection

Integrated Circuit

Dimming Control

Gas-Discharge Lamp

Quasi-Resonant Mode

Electronic Ballast

Current Control

Temperature Detection

Frequency Compensation

31 patents: Sort by Forward Citations

1. 9431911 - Switching mode power supply capable of providing a block time in response to an output current (2016-08-30),

2. 9209696 - Switching mode power supply capable of achieving soft transition for valley switching, or performing valley locking (2015-12-08),

3. 9190918 - Controllers and related control methods for generating signals representing an output current to a load in a switched mode power supply (2015-11-17),

4. 9148013 - Control methods for over voltage protection and relevant power controllers (2015-09-29),

5. 9112418 - Controller for a switched mode power supply having an integrated circuit with multifunction pin (2015-08-18),

6. 8988905 - PWM controller detecting temperature and AC line via a single pin and power converter using same (2015-03-24),

7. 8964417 - Power controllers and control methods suitable for operating a switched mode power supply in quasi-resonant mode (2015-02-24),

8. 8659271 - Fixed-on-time controller utilizing an adaptive saw signal for discontinuous mode PFC power conversion (2014-02-25),

9. 8450940 - Gas-discharge lamp controller utilizing a novel preheating phase control mechanism (2013-05-28),

10. 8314515 - System corrected programmable integrated circuit (2012-11-20),

11. 8305047 - Safety capacitor discharging method and apparatus for AC-to-DC converters (2012-11-06),

12. 8264184 - Low-pin count fan speed control system and a method thereof (2012-09-11),

13. 8253350 - Open loop LED driving circuit (2012-08-28),

14. 8217583 - Gas-discharge lamp controller utilizing a novel reheating frequency generation mechanism (2012-07-10),

15. 8203812 - Secondary side protection method and apparatus for a switching power converter (2012-06-19),

Company Overview

Grenergy Opto Inc. is a technology company based in Hsinchu, Taiwan, specializing in the development and manufacturing of advanced optoelectronic components. The organization focuses on innovative solutions in the fields of optical communication, display technologies, and sensor applications. Grenergy Opto is dedicated to enhancing performance and efficiency in various electronic systems, contributing to the evolution of smart technologies and sustainable solutions in the global market.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

31 Patents

#130 in Hsinchu

#571 in Taiwan

#21,260 in the World

Hsinchu, Taiwan

Grenergy Opto Inc.

Forward Citations = 74

25 inventors:

Yen-Hui Wang (12 out of 28 patents)

Chia-Chieh Hung (10 out of 15 patents)

Ko-Ming Lin (9 out of 9 patents)

4. Yen-Ping Wang (7 out of 68 patents)

5. Pei-Yuan Chen (6 out of 19 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Grenergy Opto Inc.. Retrieved from https://idiyas.com/company/grenergy-opto

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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