Inventor

TSENG WEN-CHANG

TW2 patents

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

TSENG WEN CHANG

1 patent

US9371672B2Jun 21, 2016

Safety braking device for doors

TSENG WEN CHANG3 citations51

VANGUARD INT SEMICONDUCT CORP

1 patent

US6089969AJul 18, 2000

Powder-proof apparatus for a PECVD reactor chamber

VANGUARD INT SEMICONDUCT CORP0 citations40