Inventor
CHANG YUNG HSIEN
TW18 patents
⚠️ This page may combine multiple inventors who share the name “CHANG YUNG HSIEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
POLYTRONICS TECHNOLOGY CORP
16 patentsUS9997906B1Jun 12, 2018
Over-current protection device
POLYTRONICS TECHNOLOGY CORP11 citations82
US11574750B2Feb 7, 2023
Over-current protection device
POLYTRONICS TECHNOLOGY CORP2 citations71
US10902980B1Jan 26, 2021
Over-current protection device
POLYTRONICS TECHNOLOGY CORP4 citations71
US11626220B2Apr 11, 2023
Surface-mountable over-current protection device
POLYTRONICS TECHNOLOGY CORP5 citations70
US11594877B2Feb 28, 2023
Over-current protection device
POLYTRONICS TECHNOLOGY CORP0 citations60
US12394545B2Aug 19, 2025
Over-current protection device
POLYTRONICS TECHNOLOGY CORP0 citations59
US12354775B2Jul 8, 2025
Over-current protection device
POLYTRONICS TECHNOLOGY CORP0 citations59
US11018502B2May 25, 2021
Cable with over-temperature protection
POLYTRONICS TECHNOLOGY CORP0 citations59
US10096407B2Oct 9, 2018
Surface-mountable over-current protection device
POLYTRONICS TECHNOLOGY CORP1 citations51
US12573528B2Mar 10, 2026
Over-current protection device
POLYTRONICS TECHNOLOGY CORP0 citations49
US12555706B2Feb 17, 2026
Over-current protection device
POLYTRONICS TECHNOLOGY CORP0 citations48
US12488916B2Dec 2, 2025
Over-current protection device
POLYTRONICS TECHNOLOGY CORP0 citations48
US12406783B2Sep 2, 2025
Circuit protection device
POLYTRONICS TECHNOLOGY CORP0 citations48
US12406782B2Sep 2, 2025
Over-current protection device
POLYTRONICS TECHNOLOGY CORP0 citations48
US11990258B2May 21, 2024
Over-current protection device
POLYTRONICS TECHNOLOGY CORP0 citations48
US11694825B2Jul 4, 2023
Radial-leaded over-current protection device
POLYTRONICS TECHNOLOGY CORP0 citations47