Assignee
CHAN YIU WAI
HK·6 granted patents·1 pending application·111 citations·filing 2007–2012
Top patents by PatentIndex Score
7 records- 0195US8086407B2Method and device for environmental monitoringCHAN YIU WAI·Filed 2007·Granted Dec 27, 2011·36 cites·11 claims
- 0294US9121837B2Method and device for environmental monitoringCHAN YIU WAI·Filed 2012·Granted Sep 1, 2015·27 cites·25 claims
- 0393US8211208B2Air purification apparatusCHAN YIU WAI·Filed 2011·Granted Jul 3, 2012·27 cites·23 claims
- 0489US8303697B2Air purification apparatusCHAN YIU WAI·Filed 2012·Granted Nov 6, 2012·14 cites·13 claims
- 0576US8778272B2Air purification systemCHAN YIU WAI·Filed 2008·Granted Jul 15, 2014·7 cites·16 claims
- 0655US2012095684A1Method and device for environmental monitoringCHAN YIU WAI·Filed 2011·Application pending·0 cites
- 0738US9931641B2Air purification device and methodCHAN YIU WAI·Filed 2012·Granted Apr 3, 2018·0 cites·16 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →