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Upi Semiconductor Corporation

USPTO Granted Patents = 121

% Expired Patents = 6.6

Trademarks = 1

Forward Citations = 268

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94 inventors (with patents filed for the assignee):

Chih-Lien Chang (23 out of 23 patents)

Hua-Chiang Huang (15 out of 18 patents)

Wei-Ling Chen (8 out of 13 patents)

4. Chih-Wen Hsiao (7 out of 12 patents)

5. Wei-Hsiu Hung (7 out of 7 patents)

6. Min-Rui Lai (7 out of 7 patents)

7. Chih-Hao Chen (6 out of 14 patents)

8. Ya-Ping Chen (5 out of 5 patents)

9. Yung-Peng Huang (5 out of 5 patents)

10. Yi-Xian Jan (4 out of 5 patents)

11. Chia-Lung Wu (4 out of 4 patents)

12. Hung-Hsuan Cheng (4 out of 4 patents)

13. Chun-Chieh Wang (3 out of 124 patents)

14. Kuo-Jen Kuo (3 out of 3 patents)

15. Chao-Chung Huang (3 out of 3 patents)

Core Competencies:

Power Switch Circuit

Power Conversion Circuit

Current Sensing Circuit

MOSFET Manufacturing

DC-DC Controller

Transient Voltage Suppressor

Battery Protection Device

Smart Power Stage

Signal Generation Circuit

Integrated Circuit

Electrostatic Discharge Protection

Multi-Phase Power Controller

121 patents: Sort by Forward Citations

1. 12597920 - Power switch circuit (2026-04-07),

2. 12560631 - Monitoring signal generation circuit of smart power stage and method thereof (2026-02-24),

3. 12483130 - Controller of power conversion circuit and operating method thereof (2025-11-25),

4. 12308731 - Controller of power conversion circuit and operating method thereof (2025-05-20),

5. 12074520 - Smart power stage module, current monitoring signal generation circuit and method thereof (2024-08-27),

6. 12027897 - Battery secondary protection circuit and operation method thereof (2024-07-02),

7. 12009749 - Smart power stage circuit of power converter and current monitoring circuit thereof (2024-06-11),

8. 11962239 - Control circuit of power converter and control method thereof (2024-04-16),

9. 11881854 - Level shifter circuit of driving device (2024-01-23),

10. 11789045 - Current sensing circuit (2023-10-17),

11. 11728807 - Power switch circuit with current sensing (2023-08-15),

12. 11722058 - Emulated current generation circuit of power converting circuit and method thereof (2023-08-08),

13. 11656644 - Control circuit of power converter and reference voltage adjusting method thereof (2023-05-23),

14. 11621637 - Control circuit of power converter (2023-04-04),

15. 11616431 - Control circuit of power converter (2023-03-28),

Upi Semiconductor Corporation, based in Zhubei, Taiwan, specializes in the development and manufacturing of advanced power conversion circuits. The company focuses on core technologies such as power switch circuits, current sensing circuits, and MOSFET manufacturing, catering to the growing demand for efficient power management solutions. Upi's innovations also encompass DC-DC controllers, transient voltage suppressors, and battery protection devices, positioning it as a key player in the smart power stage sector.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

121 Patents

#4 in Zhubei

#199 in Taiwan

#6,600 in the World

Upi Semiconductor Corporation

Forward Citations = 268

94 inventors:

Chih-Lien Chang (23 out of 23 patents)

Hua-Chiang Huang (15 out of 18 patents)

Wei-Ling Chen (8 out of 13 patents)

4. Chih-Wen Hsiao (7 out of 12 patents)

5. Wei-Hsiu Hung (7 out of 7 patents)

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