Assignee
FREIER DAVID G
US·4 granted patents·1 pending application·23 citations·filing 2009–2012
Top patents by PatentIndex Score
5 records- 0192US8743462B2Concentrating daylight collectorFREIER DAVID G·Filed 2011·Granted Jun 3, 2014·10 cites·20 claims
- 0286US8251527B1Light duct bendFREIER DAVID G·Filed 2011·Granted Aug 28, 2012·9 cites·25 claims
- 0373US9353930B2Light duct tee extractorFREIER DAVID G·Filed 2012·Granted May 31, 2016·4 cites·14 claims
- 0447US9222650B2Switchable light-duct extractionFREIER DAVID G·Filed 2011·Granted Dec 29, 2015·0 cites·23 claims
- 0544US2011032449A1Perforated backlightFREIER DAVID G·Filed 2009·Application pending·0 cites
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