Assignee
WU WOH WEN
TW·5 granted patents·107 citations·filing 1992–1992
Technology mixA45B5
Top patents by PatentIndex Score
5 records- 0161US5178174ASilently smoothly operating automatic umbrella controlled by single push buttonWU WOH WEN·Filed 1992·Granted Jan 12, 1993·36 cites·5 claims
- 0254US5267583AMultiple-fold automatic umbrella controlled by single push buttonWU WOH WEN·Filed 1992·Granted Dec 7, 1993·27 cites·1 claims
- 0347US5232004AAutomatic umbrella having wind-resistant buffer effectWU WOH WEN·Filed 1992·Granted Aug 3, 1993·18 cites·8 claims
- 0444US5161562AUmbrella with simplified automatic closing mechanismWU WOH WEN·Filed 1992·Granted Nov 10, 1992·15 cites·4 claims
- 0539US5247955AErgonomically operating automatic umbrellaWU WOH WEN·Filed 1992·Granted Sep 28, 1993·11 cites·7 claims
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