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USPTO Patent Rankings Data through Dec 31, 2025
Home › Polytronics Technology › CHEN-NAN LIU
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CHEN-NAN LIU — 4 Patents

PTPolytronics Technology: 4 patents #20 of 58Top 35%
Pitou Township, TW: #3 of 9 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
CHEN-NAN LIU has been granted 4 US patents while listed as an inventor at Polytronics Technology. The first was granted in 2024 and the most recent in September 2025. CHEN-NAN LIU ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list CHEN-NAN LIU in Pitou Township, TW.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
12406782 Over-current protection device Yung-Hsien Chang, HSIU-CHE YEN, CHENG-YU TUNG, Chia-Yuan Lee, Yu-Chieh Fu +2 more 2025-09-02
12394545 Over-current protection device HSIU-CHE YEN, Yung-Hsien Chang, CHENG-YU TUNG, Chia-Yuan Lee, Yao-Te Chang +1 more 2025-08-19
12354775 Over-current protection device Chia-Yuan Lee, CHENG-YU TUNG, HSIU-CHE YEN, Yung-Hsien Chang, Yao-Te Chang +1 more 2025-07-08
11990258 Over-current protection device HSIU-CHE YEN, Yung-Hsien Chang, CHENG-YU TUNG, Chia-Yuan Lee, Yu-Chieh Fu +2 more 2024-05-21

Frequent Collaborators

Chia-Yuan Lee4 shared
HSIU-CHE YEN4 shared
Fu Hua Chu4 shared
Yao-Te Chang4 shared
CHENG-YU TUNG4 shared
Yung-Hsien Chang4 shared

Nearby-Ranked Inventors

Jagadeesh Kandasamy4
Ross CABOT4
George Ueda4
Franz A. Gruswitz4
Tommy Glimberg4
Vinayakaraddy Gulabal4
Sandra Bittorf4
Aviel FOGEL4
Eric Matthew Walton4