For the Inventor, By the Inventor

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Hsinchu County, Taiwan

Upl Semiconductor Corp.

USPTO Granted Patents = 3

Forward Citations = 2

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9 inventors (with patents filed for the assignee):

Yi-Xian Jan (1 out of 5 patents)

Chin-Fu Chen (1 out of 9 patents)

Yi-Yun Tsai (1 out of 5 patents)

4. Sheng-An Ko (1 out of 3 patents)

5. Yen Hui Wang (1 out of 1 patent)

6. Chien Hsien Tsai (1 out of 1 patent)

7. Cheng-Hsing Li (1 out of 1 patent)

8. Kuo-Jen Kuo (1 out of 1 patent)

9. Chao-Chung Huang (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 12512759 - Controller of buck-boost conversion circuit and mode switching method thereof (2025-12-30),

2. 10978565 - Power transistor device (2021-04-13),

3. 9666505 - Power MOS transistor die with temperature sensing function and integrated circuit (2017-05-30),

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USPTO Data Jan 1 1976 - Dec 30 2025

3 Patents

#77 in Hsinchu County

#3,194 in Taiwan

Hsinchu County, Taiwan

Upl Semiconductor Corp.

Forward Citations = 2

9 inventors:

Yi-Xian Jan (1 out of 5 patents)

Chin-Fu Chen (1 out of 9 patents)

Yi-Yun Tsai (1 out of 5 patents)

4. Sheng-An Ko (1 out of 3 patents)

5. Yen Hui Wang (1 out of 1 patent)

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