P

Inventor

TSAI CHIUNG-CHANG

TW17 patents
⚠️ This page may combine multiple inventors who share the name “TSAI CHIUNG-CHANG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TSAI CHIUNG-CHANG

7 patents
USD533428SDec 12, 2006

Hand tool handle

TSAI CHIUNG-CHANG26 citations92
USD531480SNov 7, 2006

Handle for a hand tool

TSAI CHIUNG-CHANG27 citations92
USD531006SOct 31, 2006

Handle for a hand tool

TSAI CHIUNG-CHANG24 citations92
US8051747B1Nov 8, 2011

One-way ratchet wrench

TSAI CHIUNG-CHANG12 citations83
US8020473B2Sep 20, 2011

Handle of a hand tool having grinding capabilities

TSAI CHIUNG-CHANG7 citations83
USD531878SNov 14, 2006

Handle for a hand tool

TSAI CHIUNG-CHANG11 citations83
US9278435B2Mar 8, 2016

Ratchet screwdriver

TSAI CHIUNG-CHANG7 citations72

(unassigned)

4 patents
USD441269SMay 1, 2001

Handle for a hand tool

70 citations95
USD486381SFeb 10, 2004

Tool suspension plate

6 citations73
USD465986SNov 26, 2002

Handle of hand tool

9 citations73
US6405396B1Jun 18, 2002

Screwdriver assembly with an extendable rod

12 citations73

TSAI CHIUNG CHANG

4 patents
USD408258SApr 20, 1999

Tool handle

TSAI CHIUNG CHANG26 citations92
US10545013B2Jan 28, 2020

Measuring tape assembly

TSAI CHIUNG CHANG2 citations72
US10766125B2Sep 8, 2020

Ratchet screwdriver

TSAI CHIUNG CHANG1 citations62
US10384334B2Aug 20, 2019

Ratchet screwdriver

TSAI CHIUNG CHANG1 citations62

QUANTA COMP INC

2 patents
US9478901B2Oct 25, 2016

Electronic product and its cable set

QUANTA COMP INC19 citations81
US9577324B2Feb 21, 2017

Wearable electronic device

QUANTA COMP INC6 citations70