Assignee
CHANG WEN-CHEN
TW·3 granted patents·1 pending application·2 citations·filing 1995–2017
Top patents by PatentIndex Score
4 records- 0171US9718308B1Air cell castorCHANG WEN-CHEN·Filed 2016·Granted Aug 1, 2017·2 cites·4 claims
- 0255US2014291096A1Suitcase with Retractable Handle AssemblyCHANG WEN-CHEN·Filed 2013·Application pending·0 cites
- 0347US10421317B2Visible spring-biased castor assemblyCHANG WEN CHEN·Filed 2017·Granted Sep 24, 2019·0 cites·5 claims
- 0427USD376097SWheel holder of a trunkCHANG WEN-CHEN·Filed 1995·Granted Dec 3, 1996·0 cites·1 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →