Inventor · disambiguated record
Chi-Kuo Yang
Also filed as: YANG CHI-KUO
9 granted patents·179 citations·filing 1986–1996
90Inventor score
Technology areasA45B
Files withYANG CHI KUO6
Top patents by PatentIndex Score
9 records- 0160US5553634ACompactly molded rib means for multiple-fold umbrellaFiled 1996·Granted Sep 10, 1996·34 cites·2 claims
- 0258US4815489AUmbrella ink means having resilient link for accelerating folding operationYANG CHI KUO·Filed 1988·Granted Mar 28, 1989·25 cites·5 claims
- 0357US4739783AShortening link means of multiple-fold umbrellaYANG CHI KUO·Filed 1987·Granted Apr 26, 1988·24 cites·3 claims
- 0456US4676262ALink means of multiple-fold umbrellaYANG CHI KUO·Filed 1986·Granted Jun 30, 1987·23 cites·1 claims
- 0555US4766917AEasily-folded link means of multiple-fold umbrellaYANG CHI KUO·Filed 1987·Granted Aug 30, 1988·22 cites·2 claims
- 0648US4858633AStable telescopic centerpost of multiple-fold umbrellaYANG CHI KUO·Filed 1989·Granted Aug 22, 1989·15 cites·6 claims
- 0747US5370144AMultiple-fold mini umbrella with centralized retractionFiled 1994·Granted Dec 6, 1994·18 cites·2 claims
- 0845US4951695AAnti-slipping telescopic centerpost of multiple-fold umbrellaYANG CHI KUO·Filed 1989·Granted Aug 28, 1990·12 cites·9 claims
- 0935US5531237AShelter means on umbrella ferrules for concealing wire ends of rib-fastening wireFiled 1995·Granted Jul 2, 1996·6 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →