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Hsinchu, Taiwan

Holtek Semiconductor Corp.

USPTO Granted Patents = 79

% Expired Patents = 36.7

EPO Patents = 1

Trademarks = 2

Forward Citations = 249

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100 inventors (with patents filed for the assignee):

Chun-Hsiung Chen (6 out of 6 patents)

Chun-Yao Liao (5 out of 5 patents)

Chi-Ho Hsu (5 out of 5 patents)

4. Yu-Ren Chen (4 out of 15 patents)

5. Ming-Hong Jian (4 out of 4 patents)

6. Wen-Liang Liu (4 out of 9 patents)

7. Chuen-An Lin (4 out of 4 patents)

8. Chih-Wei Yang (4 out of 4 patents)

9. Min-Kun Wang (4 out of 4 patents)

10. Chien-Hsun Lee (3 out of 141 patents)

11. Kuo-Hsiang Chen (3 out of 9 patents)

12. Chun-Lin Shen (3 out of 3 patents)

13. Hsiang Sheng Liu (3 out of 3 patents)

14. Yuan-Ho Liu (3 out of 3 patents)

15. Chun-Ku Lin (3 out of 3 patents)

Core Competencies:

Hematocrit Measurement

Brightness Compensation

Read-Only Memory

Capacitive Touching

Voltage Regulator

USB Synchronization

Analog to Digital Converter

Power Control

Frequency Calibration

Light Emitting Diode

Temperature Compensation

Integrated Circuit

79 patents: Sort by Forward Citations

1. 10753899 - Whole blood measurement method associated to hematocrit (2020-08-25),

2. 10151721 - Whole blood measurement method associated to hematocrit (HCT) and whole blood measurement circuit thereof (2018-12-11),

3. 8576258 - Brightness compensation apparatus and application method thereof (2013-11-05),

4. 8452935 - Read-only memory device with securing function and accessing method thereof (2013-05-28),

5. 8379041 - Method for extending duration of a display apparatus having brightness compensation and apparatus realizing the same (2013-02-19),

6. 8314885 - Image-clock adjusting circuit and method (2012-11-20),

7. 8222946 - Capacitive touching apparatus (2012-07-17),

8. 8174484 - Signal processing circuit and method (2012-05-08),

9. 8170822 - Compensation method for touch sensor system (2012-05-01),

10. 8169204 - Active current limiting circuit and power regulator using the same (2012-05-01),

11. 8106606 - Voltage multiple dimming control apparatus (2012-01-31),

12. 8090070 - Synchronizing device for USB real-time audio data transmission (2012-01-03),

13. 8089743 - Voltage regulator having active foldback current limiting circuit (2012-01-03),

14. 8076919 - Switch-mode power supply (2011-12-13),

15. 8040193 - Oscillation adjusting circuit and method (2011-10-18),

Holtek Semiconductor Corp., based in Hsinchu, Taiwan, specializes in the development and manufacturing of semiconductor circuits. The company focuses on a diverse range of core technologies, including hematocrit measurement, brightness compensation, and capacitive touching. Holtek is also known for its innovations in read-only memory, voltage regulation, USB synchronization, analog to digital conversion, and power control solutions. Its expertise positions Holtek as a key player in the semiconductor industry, catering to various applications across multiple sectors.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

79 Patents

#73 in Hsinchu

#280 in Taiwan

#9,571 in the World

Hsinchu, Taiwan

Holtek Semiconductor Corp.

Forward Citations = 249

100 inventors:

Chun-Hsiung Chen (6 out of 6 patents)

Chun-Yao Liao (5 out of 5 patents)

Chi-Ho Hsu (5 out of 5 patents)

4. Yu-Ren Chen (4 out of 15 patents)

5. Ming-Hong Jian (4 out of 4 patents)

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