Inventor

HO CHIEN CHENG

TW2 patents

⚠️ This page may combine multiple inventors who share the name “HO CHIEN CHENG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HE TSAN-HUNG

1 patent

USD552977SOct 16, 2007

Screw

HE TSAN-HUNG39 citations80

POLYTRONICS TECHNOLOGY CORP

1 patent

US9653192B2May 16, 2017

PTC composition and over-current protection device containing the same

POLYTRONICS TECHNOLOGY CORP0 citations48