Assignee

CHEN CHIN-CHI

TW·2 granted patents·203 citations·filing 1986–2012

Technology mixA63B1 B25B1 Y10S1

Top patents by PatentIndex Score

2 records

0189US4681321AGolf club headCHEN CHIN CHI·Filed 1986·Granted Jul 21, 1987·194 cites·4 claims
0280US8844408B2Pneumatic ratchet wrench with a pneumatically actuated reversing deviceCHEN CHIN-CHI·Filed 2012·Granted Sep 30, 2014·9 cites·9 claims

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