Inventor

KO PO-WEN

TW4 patents

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

JITBOUNDARY UNITED PRODUCTION INC

2 patents

US10667353B2May 26, 2020

Lighting system of alternate current light-emitting diodes

JITBOUNDARY UNITED PRODUCTION INC0 citations28

US10154557B2Dec 11, 2018

Light-emitting diode driver device having a multi-stage driver module and method for driving the same

JITBOUNDARY UNITED PRODUCTION INC0 citations28

CHUNGHWA TELECOM CO LTD

1 patent

US7991434B2Aug 2, 2011

Combi-sim card framework of electronic purse combining wireless transceiver of mobile device

CHUNGHWA TELECOM CO LTD34 citations83

POWER INT CHEMICAL & OIL CORP

1 patent

US9437052B2Sep 6, 2016

Vehicle after-sales service system

POWER INT CHEMICAL & OIL CORP1 citations39