Inventor · disambiguated record
Melvyn H. Kreitzer
Also filed as: KREITZER MELVYN · KREITZER MELVYN H
44 granted patents·1 pending application·3,100 citations·filing 1978–2014
99Inventor score
Files withUS PRECISION LENS INC11VIVITAR CORP8EASTMAN KODAK CO73M INNOVATIVE PROPERTIES CO4U S PREC LENS INC4
Top patents by PatentIndex Score
45 records- 0198US6169636B1Focus corrector for zoom projection lenses used with pixelized panelsU S PREC LENS INC·Filed 1999·Granted Jan 2, 2001·200 cites·10 claims
- 0297US7230770B2Projection lenses having color-correcting rear lens units3M INNOVATIVE PROPERTIES CO·Filed 2005·Granted Jun 12, 2007·92 cites·27 claims
- 0397US7145729B2Foldable projection lenses3M INNOVATIVE PROPERTIES CO·Filed 2005·Granted Dec 5, 2006·90 cites·34 claims
- 0497US6853493B2Folded, telecentric projection lenses for use with pixelized panels3M INNOVATIVE PROPERTIES CO·Filed 2003·Granted Feb 8, 2005·139 cites·20 claims
- 0596US6476974B1Projection lenses for use with reflective pixelized panelsCORNING PREC LENS INC·Filed 2001·Granted Nov 5, 2002·105 cites·17 claims
- 0695US8872435B2LED light for examinations and proceduresKREITZER MELVYN H·Filed 2011·Granted Oct 28, 2014·83 cites·19 claims
- 0795US6301057B1Long focal length projection lensesCORNING PREC LENS·Filed 2000·Granted Oct 9, 2001·91 cites·21 claims
- 0895US6195209B1Projection lenses having reduced lateral color for use with pixelized panelsU S PREC LENS INC·Filed 1999·Granted Feb 27, 2001·123 cites·31 claims
- 0995US5870228AProjection lenses having larger back focal length to focal length ratiosUS PRECISION LENS INC·Filed 1997·Granted Feb 9, 1999·128 cites·4 claims
- 1095US5745301AVariable power lens systems for producing small imagesBENOPCON INC·Filed 1994·Granted Apr 28, 1998·152 cites·35 claims
- 1194US5969876AProjection lenses having large back focal length to focal length ratiosUS PRECISION LENS INC·Filed 1999·Granted Oct 19, 1999·116 cites·22 claims
- 1294US5900987AZoom projection lenses for use with pixelized panelsUS PRECISION LENS INC·Filed 1998·Granted May 4, 1999·145 cites·9 claims
- 1393US5455713AHigh performance, thermally-stabilized projection television lens systemsFiled 1993·Granted Oct 3, 1995·115 cites·66 claims
- 1492US6097551ALenses for electronic imaging systemsUS PRECISION LENS INC·Filed 1997·Granted Aug 1, 2000·104 cites·33 claims
- 1592US5900989AMini-zoom projection lenses for use with pixelized panelsUS PRECISION LENS INC·Filed 1997·Granted May 4, 1999·99 cites·16 claims
- 1692US5493448AZoom lens having weak front lens groupEASTMAN KODAK CO·Filed 1993·Granted Feb 20, 1996·90 cites·14 claims
- 1792US5315440AZoom lens having weak front lens groupEASTMAN KODAK CO·Filed 1991·Granted May 24, 1994·95 cites·21 claims
- 1892US5268792AZoom lensEASTMAN KODAK CO·Filed 1991·Granted Dec 7, 1993·105 cites·43 claims
- 1991US6023375AProjection lenses for use with large pixelized panelsUS PRECISION LENS INC·Filed 1997·Granted Feb 8, 2000·92 cites·21 claims
- 2091US5963375AAthermal LCD projection lensUS PRECISION LENS INC·Filed 1997·Granted Oct 5, 1999·101 cites·16 claims
- 2191US5309283AHybrid, color-corrected, projection TV lens systemUS PRECISION LENS INC·Filed 1993·Granted May 3, 1994·110 cites·28 claims
- 2291US4936661AZoom lens with short back focal lengthOPCON ASSOCIATES INC·Filed 1988·Granted Jun 26, 1990·94 cites·40 claims
- 2390US6529336B1Color corrected projection lenses employing diffractive optical surfacesU S PREC LENS INC·Filed 1999·Granted Mar 4, 2003·93 cites·6 claims
- 2490US6301056B1High speed retrofocus projection television lens systemsCORNING PREC LENS·Filed 1999·Granted Oct 9, 2001·92 cites·20 claims
- 2589US6141154AFocusable, color corrected, high performance projection lens systemsU S PREC LENS INC·Filed 1998·Granted Oct 31, 2000·89 cites·20 claims
- 2688US5936776AFocusable front projection lens systems for use with large screen formatsUS PRECISION LENS INC·Filed 1997·Granted Aug 10, 1999·92 cites·41 claims
- 2783US4523816ACatadioptric lensVIVITAR CORP·Filed 1983·Granted Jun 18, 1985·39 cites·9 claims
- 2880US4655562AObjective lens system, relay lens system, and eyepiece lens system for night-vision gogglesFJW IND INC·Filed 1985·Granted Apr 7, 1987·44 cites·18 claims
- 2976US4828372AWide-angle zoom lensEASTMAN KODAK CO·Filed 1988·Granted May 9, 1989·34 cites·30 claims
- 3073US4900139AColor corrected projection lensUS PRECISION LENS INC·Filed 1988·Granted Feb 13, 1990·31 cites·59 claims
- 3172US4256381AZoom lensVIVITAR CORP·Filed 1980·Granted Mar 17, 1981·25 cites·31 claims
- 3271US4757372ASLR zoom cameraEASTMAN KODAK CO·Filed 1987·Granted Jul 12, 1988·12 cites·10 claims
- 3370US9479686B2Zoom lens optical systemKREITZER MELVYN H·Filed 2014·Granted Oct 25, 2016·2 cites·26 claims
- 3453US4838668AZoom lensEASTMAN KODAK CO·Filed 1987·Granted Jun 13, 1989·14 cites·34 claims
- 3551US4307943AClose focusing zoom lensVIVITAR CORP·Filed 1980·Granted Dec 29, 1981·11 cites·21 claims
- 3647US4182549ACompact wide angle lensVIVITAR CORP·Filed 1978·Granted Jan 8, 1980·9 cites·2 claims
- 3745US4333714ACompact wide angle lensVIVITAR CORP·Filed 1980·Granted Jun 8, 1982·8 cites·7 claims
- 3843US4359272AInternal focusing telephoto lensBALCON IND INC·Filed 1980·Granted Nov 16, 1982·9 cites·11 claims
- 3942US5991089ALong focal length projection lenses for use with large pixelized panelsUS PRECISION LENS INC·Filed 1998·Granted Nov 23, 1999·9 cites·16 claims
- 4040US2006028741A1Projection lenses having color-correcting rear lens units3M INNOVATIVE PROPERTIES CO·Filed 2005·Application pending·0 cites
- 4139USRE35775EZoom lens with short back focal lengthFiled 1992·Granted Apr 21, 1998·7 cites·41 claims
- 4239US4818082ACompact wide-angle close-focus SLR zoom lensEASTMAN KODAK CO·Filed 1988·Granted Apr 4, 1989·7 cites·4 claims
- 4332US4659188AZoom lensVIVITAR CORP·Filed 1984·Granted Apr 21, 1987·2 cites·15 claims
- 4430US4303315ACompact wide angle lensVIVITAR CORP·Filed 1979·Granted Dec 1, 1981·0 cites·5 claims
- 4523US4367928AWide angle lens attachmentVIVITAR CORP·Filed 1980·Granted Jan 11, 1983·2 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →