Assignee
LIU KEH-SHIUM
TW·2 granted patents·2 pending applications·7 citations·filing 2008–2012
Top patents by PatentIndex Score
4 records- 0177US8390017B2Optical device for semiconductor based lampLIU KEH SHIUM·Filed 2012·Granted Mar 5, 2013·3 cites·15 claims
- 0271US8324645B2Optical device for semiconductor based lampLIU KEH SHIUM·Filed 2010·Granted Dec 4, 2012·4 cites·19 claims
- 0345US2010061118A1Lens Beam-Concentrating DeviceLIU KEH-SHIUM·Filed 2008·Application pending·0 cites
- 0439US2011272002A1Sunlight collecting system for illuminationLIU KEH-SHIUM·Filed 2011·Application pending·0 cites
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