Assignee
YANG CHI KUO
TW·6 granted patents·121 citations·filing 1986–1989
Technology mixA45B6
Top patents by PatentIndex Score
6 records- 0158US4815489AUmbrella ink means having resilient link for accelerating folding operationYANG CHI KUO·Filed 1988·Granted Mar 28, 1989·25 cites·5 claims
- 0257US4739783AShortening link means of multiple-fold umbrellaYANG CHI KUO·Filed 1987·Granted Apr 26, 1988·24 cites·3 claims
- 0356US4676262ALink means of multiple-fold umbrellaYANG CHI KUO·Filed 1986·Granted Jun 30, 1987·23 cites·1 claims
- 0455US4766917AEasily-folded link means of multiple-fold umbrellaYANG CHI KUO·Filed 1987·Granted Aug 30, 1988·22 cites·2 claims
- 0548US4858633AStable telescopic centerpost of multiple-fold umbrellaYANG CHI KUO·Filed 1989·Granted Aug 22, 1989·15 cites·6 claims
- 0645US4951695AAnti-slipping telescopic centerpost of multiple-fold umbrellaYANG CHI KUO·Filed 1989·Granted Aug 28, 1990·12 cites·9 claims
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