Inventor · disambiguated record
David L. Wortman
Also filed as: OUDERKIRK ANDREW J · WORTMAN DAVID L · WORTMAN DAVID LEE
26 granted patents·2 pending applications·3,757 citations·filing 1989–2024
98Inventor score
Files with3M INNOVATIVE PROPERTIES CO19MINNESOTA MINING & MFG63M INTELLECTUAL PROPERTIES COM13MINNOVATIVE PROPERTIES COMPAN1ACITO PAUL LOUIS1
Top patents by PatentIndex Score
28 records- 0199US7038745B2Brightness enhancing reflective polarizer3M INNOVATIVE PROPERTIES CO·Filed 2003·Granted May 2, 2006·121 cites·8 claims
- 0299US6262842B1Transflective displays with reflective polarizing transflector3M INNOVATIVE PROPERTIES CO·Filed 2000·Granted Jul 17, 2001·231 cites·14 claims
- 0399US6080467AHigh efficiency optical devices3M INNOVATIVE PROPERTIES CO·Filed 1995·Granted Jun 27, 2000·229 cites·34 claims
- 0499US6025897ADisplay with reflective polarizer and randomizing cavity3M INNOVATIVE PROPERTIES CO·Filed 1996·Granted Feb 15, 2000·254 cites·22 claims
- 0599US5828488AReflective polarizer displayMINNESOTA MINING & MFG·Filed 1995·Granted Oct 27, 1998·513 cites·92 claims
- 0699US5771328ALight directing film having variable height structured surface and light directing article constructed therefromMINNESOTA MINING & MFG·Filed 1997·Granted Jun 23, 1998·629 cites·10 claims
- 0798US6905220B2Backlight system with multilayer optical film reflector3M INNOVATIVE PROPERTIES CO·Filed 2002·Granted Jun 14, 2005·124 cites·53 claims
- 0898US6101032ALight fixture having a multilayer polymeric film3M INNOVATIVE PROPERTIES CO·Filed 1995·Granted Aug 8, 2000·215 cites·45 claims
- 0998US5825542ADiffusely reflecting multilayer polarizers and mirrorsMINNESOTA MINING & MFG·Filed 1997·Granted Oct 20, 1998·309 cites·31 claims
- 1097US7147903B2High efficiency optical devices3M INNOVATIVE PROPERTIES CO·Filed 2005·Granted Dec 12, 2006·23 cites·19 claims
- 1197US6924014B2High efficiency optical devices3MINNOVATIVE PROPERTIES COMPAN·Filed 2003·Granted Aug 2, 2005·64 cites·20 claims
- 1297US6124971ATransflective displays with reflective polarizing transflector3M INNOVATIVE PROPERTIES CO·Filed 1997·Granted Sep 26, 2000·215 cites·56 claims
- 1396US6210785B1High efficiency optical devices3M INNOVATIVE PROPERTIES CO·Filed 1999·Granted Apr 3, 2001·90 cites·18 claims
- 1496US6091547ALuminance control film3M INNOVATIVE PROPERTIES CO·Filed 1997·Granted Jul 18, 2000·223 cites·6 claims
- 1594US6515785B1Optical devices using reflecting polarizing materials3M INNOVATIVE PROPERTIES CO·Filed 1999·Granted Feb 4, 2003·109 cites·4 claims
- 1691US6934082B2Optical devices using reflecting polarizing materials3M INNOVATIVE PROPERTIES CO·Filed 2004·Granted Aug 23, 2005·33 cites·7 claims
- 1789US7423708B2Display having a reflective polarizer3M INNOVATIVE PROPERTIES CO·Filed 2005·Granted Sep 9, 2008·7 cites·7 claims
- 1889US6543153B1Reflective polarizer having improved properties and optical display with improved reflective polarizer3M INNOVATIVE PROPERTIES CO·Filed 1999·Granted Apr 8, 2003·61 cites·11 claims
- 1989US6018419ADiffuse reflectors3M INTELLECTUAL PROPERTIES COM·Filed 1998·Granted Jan 25, 2000·84 cites·22 claims
- 2085US6447135B1Lightguide having a directly secured reflector and method of making the same3M INNOVATIVE PROPERTIES CO·Filed 1999·Granted Sep 10, 2002·64 cites·24 claims
- 2184US7833593B2High efficiency optical devices3M INNOVATIVE PROPERTIES CO·Filed 2007·Granted Nov 16, 2010·3 cites·12 claims
- 2282US6641883B2High efficiency optical devices3M INNOVATIVE PROPERTIES CO·Filed 2001·Granted Nov 4, 2003·11 cites·25 claims
- 2380US5363470ADisplacing an optical lighting film's linear array of grooves to facilitate emission of lightMINNESOTA MINING & MFG·Filed 1993·Granted Nov 8, 1994·49 cites·7 claims
- 2479US5202683AOptical traffic preemption detectorMINNESOTA MINING & MFG·Filed 1991·Granted Apr 13, 1993·52 cites·29 claims
- 2576US6888675B2Transflective displays with reflective polarizing transflector3M INNOVATIVE PROPERTIES CO·Filed 2001·Granted May 3, 2005·12 cites·9 claims
- 2673US5095415ALight fixture for externally illuminated signMINNESOTA MINING & MFG·Filed 1989·Granted Mar 10, 1992·32 cites·15 claims
- 2765US2007092728A1High efficiency optical devices3M INNOVATIVE PROPERTIES CO·Filed 2006·Application pending·0 cites
- 2859US2025333136A1Manufacturing method, an article, a device, and application method for providing high brightness, durable, foldable, sealed and fluorescent retroreflectorACITO PAUL LOUIS·Filed 2024·Application pending·0 cites
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