Inventor · disambiguated record
J. Brian Caldwell
Also filed as: CALDWELL J BRIAN
11 granted patents·1 pending application·209 citations·filing 1987–2017
92Inventor score
Top patents by PatentIndex Score
12 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
- 0392US8903232B1Optical attachment for reducing the focal length of an objective lensCALDWELL PHOTOGRAPHIC INC·Filed 2014·Granted Dec 2, 2014·38 cites·18 claims
- 0486US8678676B2Tilt shift lens adapterSCHOLZ ERWIN·Filed 2011·Granted Mar 25, 2014·11 cites·20 claims
- 0582US8169717B2Large aperture imaging optical systemsCALDWELL J BRIAN·Filed 2010·Granted May 1, 2012·7 cites·20 claims
- 0674US5182236AGradient index glasses and sol-gel method for their preparationENICHEM SPA·Filed 1991·Granted Jan 26, 1993·38 cites·25 claims
- 0771US7808718B2Afocal Galilean attachment lens with high pupil magnificationFM ASSETS PTY LTD·Filed 2009·Granted Oct 5, 2010·6 cites·20 claims
- 0870US4797376ASol-gel method for making gradient-index glassUNIV ROCHESTER·Filed 1987·Granted Jan 10, 1989·19 cites·7 claims
- 0968US5206189ASol-gel method for the preparation of monolithic multicomponent oxide glassesDONEGANI GUIDO IST·Filed 1991·Granted Apr 27, 1993·28 cites·27 claims
- 1067US7733581B2Large aperture imaging optical systemCALDWELL J BRIAN·Filed 2008·Granted Jun 8, 2010·4 cites·35 claims
- 1159US4902650AGradient-index glassUNIV ROCHESTER·Filed 1988·Granted Feb 20, 1990·19 cites·5 claims
- 1241US2014085532A1Corrective optical systems and methodsCALDWELL PHOTOGRAPHIC INC·Filed 2013·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →