P

Inventor

CHANG WEN-HAN

TW14 patents
⚠️ This page may combine multiple inventors who share the name “CHANG WEN-HAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CHANG WEN-HAN

4 patents
US7356362B2Apr 8, 2008

Headset structure with built-in audio source

CHANG WEN-HAN152 citations92
US7222811B2May 29, 2007

Positioning device of a dual direction cable reel

CHANG WEN-HAN22 citations91
US7222812B2May 29, 2007

Positioning shaft of a dual direction cable reel

CHANG WEN-HAN28 citations88
US7607603B1Oct 27, 2009

Single-pull power and signal cable reel

CHANG WEN-HAN16 citations82

CHICONY ELECTRONICS CO LTD

3 patents
US11287907B1Mar 29, 2022

Touch pad module

CHICONY ELECTRONICS CO LTD12 citations84
US11435839B2Sep 6, 2022

Touch pad module

CHICONY ELECTRONICS CO LTD2 citations72
US12292183B2May 6, 2025

Illuminated keyboard

CHICONY ELECTRONICS CO LTD0 citations60

CHEN KO-AN

2 patents
US8336688B2Dec 25, 2012

Thin cable retractor

CHEN KO-AN8 citations82
US8403247B2Mar 26, 2013

Slider case having cable retractor

CHEN KO-AN2 citations60

ACROX TECHNOLOGIES CO LTD

2 patents
US7681823B2Mar 23, 2010

Positioning structure of a single-pull reel

ACROX TECHNOLOGIES CO LTD10 citations82
US7604194B2Oct 20, 2009

Structure of a single-pull reel

ACROX TECHNOLOGIES CO LTD15 citations82

MACKAY MEMORIAL HOSPITAL

2 patents
US10932704B2Mar 2, 2021

Device and method for measuring blood oxygen level and/or detecting brain hematoma

MACKAY MEMORIAL HOSPITAL0 citations51
US11938272B2Mar 26, 2024

Respiratory mask

MACKAY MEMORIAL HOSPITAL0 citations43

(unassigned)

1 patent
US6871812B1Mar 29, 2005

Multi-stages retractable coiling cord device

104 citations96