Assignee
LIGHTSPAN LLC
US·2 granted patents·10 citations·filing 2001–2003
Technology mixG02F2
Top patents by PatentIndex Score
2 records- 0167US6654188B2Compositions and devices for thermo optically controlled switching and filteringLIGHTSPAN LLC·Filed 2001·Granted Nov 25, 2003·10 cites·10 claims
- 0238US7139463B2Compositions and devices for thermooptically controlled switching and filteringLIGHTSPAN LLC·Filed 2003·Granted Nov 21, 2006·0 cites·18 claims
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