Inventor

TSAI CHENG-CHANG

TW8 patents

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

TSAI CHENG CHANG

2 patents

US7255027B1Aug 14, 2007

Self-adjusting plier device

TSAI CHENG CHANG21 citations89

US7584686B2Sep 8, 2009

Quick release mechanism for socket wrench

TSAI CHENG CHANG6 citations60

TSAI CHENG-CHANG

2 patents

USD435049SDec 12, 2000

Portable pump

TSAI CHENG-CHANG27 citations89

US8347759B2Jan 8, 2013

Well coated wrench

TSAI CHENG-CHANG4 citations60

MYTOOLS ENTPR CO LTD

2 patents

USD833841SNov 20, 2018

Torsion wrench

MYTOOLS ENTPR CO LTD15 citations79

US11541513B2Jan 3, 2023

Plumbing pliers

MYTOOLS ENTPR CO LTD0 citations47

(unassigned)

1 patent

US6155781ADec 5, 2000

Portable electric air pump

HTC CORP

1 patent

US11212093B2Dec 28, 2021

Method of social key recovery and related device

HTC CORP1 citations50