Assignee
WAI LAU YING
HK·3 granted patents·58 citations·filing 2009–2009
Top patents by PatentIndex Score
3 records- 0187US7789922B1Cyclonic chamber for air filtration devicesWAI LAU YING·Filed 2009·Granted Sep 7, 2010·33 cites·15 claims
- 0283US8167964B2Cyclonic chamber for air filtration devicesWAI LAU YING·Filed 2009·Granted May 1, 2012·25 cites·10 claims
- 0324USD633666SUpright vacuum cleanerWAI LAU YING·Filed 2009·Granted Mar 1, 2011·0 cites·1 claims
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