Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
FC

Fu Hua Chu — 22 Patents

PTPolytronics Technology: 21 patents #4 of 58Top 7%
Taipei, TW: #576 of 24,966 inventorsTop 3%
Overall (All Time): #189,202 of 4,157,543Top 5%
22 Patents All Time
Fu Hua Chu has been granted 22 US patents while listed as an inventor at Polytronics Technology. The first was granted in 2002 and the most recent in December 2025. Fu Hua Chu ranks #189,202 of 4,157,543 US inventors in our database (top 4.6%). Patent records list Fu Hua Chu in Taipei, TW.

Patents per Year

Patents granted per year, 2002 to 2025Bar chart with a peak of 4 patents in 2025.peak 42002: 2 patents20022008: 1 patents2010: 1 patents20102011: 2 patents2012: 1 patents20122013: 2 patents2014: 1 patents20142015: 3 patents2016: 1 patents20162021: 1 patents2023: 2 patents20232024: 1 patents2025: 4 patents2025

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #TitleCo-InventorsDate
12488916 Over-current protection device CHEN-NAN LIU, Yung Peng Chang, CHENG-YU TUNG, Hsu-Chuan Yen, Chuping Lee +1 more 2025-12-02
12406782 Over-current protection device CHEN-NAN LIU, Yung-Hsien Chang, HSIU-CHE YEN, CHENG-YU TUNG, Chia-Yuan Lee +2 more 2025-09-02
12394545 Over-current protection device HSIU-CHE YEN, Yung-Hsien Chang, CHENG-YU TUNG, Chia-Yuan Lee, CHEN-NAN LIU +1 more 2025-08-19
12354775 Over-current protection device Chia-Yuan Lee, CHENG-YU TUNG, HSIU-CHE YEN, CHEN-NAN LIU, Yung-Hsien Chang +1 more 2025-07-08
11990258 Over-current protection device HSIU-CHE YEN, Yung-Hsien Chang, CHENG-YU TUNG, CHEN-NAN LIU, Chia-Yuan Lee +2 more 2024-05-21
11594877 Over-current protection device Zhen Yu Dong, Yung-Hsien Chang, HSIU-CHE YEN, Yao-Te Chang, Takashi Hasunuma 2023-02-28
11574750 Over-current protection device HSIU-CHE YEN, Yung-Hsien Chang, Zhen Yu Dong, Yao-Te Chang 2023-02-07
10902980 Over-current protection device Zhen Yu Dong, Yung-Hsien Chang, HSIU-CHE YEN, Yao-Te Chang 2021-01-26
9461345 Secondary battery David Shau Chew Wang, Chun Teng Tseng 2016-10-04
9147509 Radial-leaded over-current protection device Yi-An Sha, En Tien Yang, Tong Cheng Tsai 2015-09-29
9000881 Surface mountable over-current protection device David Shau Chew Wang, Chun Teng Tseng, Yi-An Sha 2015-04-07
8933775 Surface mountable over-current protection device David Shau Chew Wang, Chun Teng Tseng 2015-01-13
8687336 Over-current protection device and battery protection circuit assembly containing the same David Shau Chew Wang, Chun Teng Tseng 2014-04-01
RE44224 Surface-mounted over-current protection device Shau Wang 2013-05-21
8421584 Over-current protection device and method for manufacturing the same Tong Cheng Tsai, Yi-An Sha, David Shau Chew Wang 2013-04-16
8169294 Over-current protection device Yi-An Sha, Kuo-Chang Lo 2012-05-01
8044763 Surface-mounted over-current protection device Shau Wang 2011-10-25
8003216 Heat-conductive dielectric polymer material and heat dissipation substrate containing the same David Shau Chew Wang, En Tien Yang, Jyh Ming Yu 2011-08-23
7701322 Surface-mounted over-current protection device Shau Wang 2010-04-20
7382224 Over-current protection device Shau Wang, Kuo-Chang Lo 2008-06-03
6479575 Electrical devices comprising conductive polymer blend compositions Yun-Ching Ma 2002-11-12
6377467 Surface mountable over-current protecting device Yun-Ching Ma, David Shau Chew Wang 2002-04-23