Assignee
ZHAO GUOHENG
US·7 granted patents·1 pending application·106 citations·filing 2007–2012
Top patents by PatentIndex Score
8 records- 0197US8891079B2Wafer inspectionZHAO GUOHENG·Filed 2011·Granted Nov 18, 2014·57 cites·43 claims
- 0291US8194301B2Multi-spot scanning system and methodZHAO GUOHENG·Filed 2008·Granted Jun 5, 2012·20 cites·8 claims
- 0390US9176072B2Dark field inspection system with ring illuminationZHAO GUOHENG·Filed 2010·Granted Nov 3, 2015·10 cites·30 claims
- 0489US8415961B1Measuring sheet resistance and other properties of a semiconductorZHAO GUOHENG·Filed 2010·Granted Apr 9, 2013·8 cites·24 claims
- 0586US8436554B2LED solar illuminatorZHAO GUOHENG·Filed 2011·Granted May 7, 2013·9 cites·20 claims
- 0675US8462329B2Multi-spot illumination for wafer inspectionZHAO GUOHENG·Filed 2011·Granted Jun 11, 2013·2 cites·11 claims
- 0758US2008002193A1System for detecting anomalies and/or features of a surfaceZHAO GUOHENG·Filed 2007·Application pending·0 cites
- 0852US9001327B2Composite polarizer with adjustable polarization anglesZHAO GUOHENG·Filed 2012·Granted Apr 7, 2015·0 cites·24 claims
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