Inventor · disambiguated record
John F. Dreyer, Jr.
Also filed as: DREYER JOHN F · DREYER JR JOHN F
21 granted patents·1,198 citations·filing 1974–1999
97Inventor score
Top patents by PatentIndex Score
21 records- 0198US4984144AHigh aspect ratio light fixture and film for use thereinMINNESOTA MINING & MFG·Filed 1988·Granted Jan 8, 1991·175 cites·9 claims
- 0298US4791540ALight fixture providing normalized outputMINNESOTA MINING & MFG·Filed 1987·Granted Dec 13, 1988·246 cites·5 claims
- 0390US6052164AElectroluminescent display with brightness enhancement3M INNOVATIVE PROPERTIES CO·Filed 1993·Granted Apr 18, 2000·96 cites·10 claims
- 0486US5745632ATotally internally reflecting light conduitMINNESOTA MINING & MFG·Filed 1997·Granted Apr 28, 1998·73 cites·8 claims
- 0586US5575550APole light having a programmable footprintMINNESOTA MINING & MFG·Filed 1995·Granted Nov 19, 1996·53 cites·6 claims
- 0685US5889615ADual axis retroreflective articlesMINNESOTA MINING & MFG·Filed 1997·Granted Mar 30, 1999·72 cites·30 claims
- 0784US6045230AModulating retroreflective article3M INNOVATIVE PROPERTIES CO·Filed 1998·Granted Apr 4, 2000·92 cites·30 claims
- 0882US5020173ABedstead storage boxDREYER JR JOHN F·Filed 1989·Granted Jun 4, 1991·62 cites·3 claims
- 0982US4989948AReflective sheeting materialMINNESOTA MINING & MFG·Filed 1989·Granted Feb 5, 1991·44 cites·23 claims
- 1078US5504544AProjector with multiple lamp light sourceMINNESOTA MINING & MFG·Filed 1994·Granted Apr 2, 1996·47 cites·9 claims
- 1175US5258896ALine light sourceMINNESOTA MINING & MFG·Filed 1992·Granted Nov 2, 1993·38 cites·8 claims
- 1272US4634246AAutomatic focus for overhead projectorMINNESOTA MINING & MFG·Filed 1985·Granted Jan 6, 1987·12 cites·2 claims
- 1369US5471348ADirected reflection optical deviceMINNESOTA MINING & MFG·Filed 1994·Granted Nov 28, 1995·30 cites·12 claims
- 1468US5043850ADirection dependent line light sourceMINNESOTA MINING & MFG·Filed 1990·Granted Aug 27, 1991·31 cites·8 claims
- 1565US6055108AImaging articles and methods using dual-axis retroreflective elementsMINNESOTA MINING & MFG·Filed 1999·Granted Apr 25, 2000·27 cites·25 claims
- 1663US6282026B1Retroreflectors having two optical surfaces and varying retroreflectivity3M INNOVATIVE PROPERTIES CO·Filed 1998·Granted Aug 28, 2001·30 cites·34 claims
- 1761US5692822AUniform bi-directional dependent line light source via controlled partial reflectionMINNESOTA MINING & MFG·Filed 1995·Granted Dec 2, 1997·24 cites·7 claims
- 1859US3991606AApparatus and method for converting mechanical wave energy to optical energyMINNESOTA MINING & MFG·Filed 1974·Granted Nov 16, 1976·10 cites·15 claims
- 1954US5700077ALine light source including fluorescent colorantMINNESOTA MINING & MFG·Filed 1995·Granted Dec 23, 1997·19 cites·10 claims
- 2044US5135301AReflective overhead projector with alternate light sourcesMINNESOTA MINING & MFG·Filed 1991·Granted Aug 4, 1992·11 cites·5 claims
- 2137US5497294AConspicuity enhancerMINNESOTA MINING & MFG·Filed 1994·Granted Mar 5, 1996·6 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →