Assignee
CALDWELL J BRIAN
4 granted patents·50 citations·filing 2008–2017
Technology mixG02B4
Top patents by PatentIndex Score
4 records- 0193US10126533B1Anamorphic optical system wity relative small squeeze ratio but with relatively pronounced residual anamorphic characteristicsCALDWELL J BRIAN·Filed 2017·Granted Nov 13, 2018·15 cites·20 claims
- 0293US8879901B2Optical attachment for reducing the focal length of an objective lensCALDWELL J BRIAN·Filed 2012·Granted Nov 4, 2014·24 cites·17 claims
- 0382US8169717B2Large aperture imaging optical systemsCALDWELL J BRIAN·Filed 2010·Granted May 1, 2012·7 cites·20 claims
- 0467US7733581B2Large aperture imaging optical systemCALDWELL J BRIAN·Filed 2008·Granted Jun 8, 2010·4 cites·35 claims
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