Assignee
DUREL CORP
US·48 granted patents·4 pending applications·1,469 citations·filing 1991–2003
Top patents by PatentIndex Score
52 records- 0197US5493183AOpen loop brightness control for EL lampDUREL CORP·Filed 1994·Granted Feb 20, 1996·245 cites·10 claims
- 0292US6465951B1Electroluminescent lamp devices and their manufactureDUREL CORP·Filed 2000·Granted Oct 15, 2002·47 cites·32 claims
- 0389US6703781B2El lamp with light scattering particles in cascading layerDUREL CORP·Filed 2002·Granted Mar 9, 2004·56 cites·12 claims
- 0489US6043610ABattery operated power supply including a low level boost and a high level boostDUREL CORP·Filed 1998·Granted Mar 28, 2000·89 cites·11 claims
- 0589US5565733AElectroluminescent modular lamp unitDUREL CORP·Filed 1995·Granted Oct 15, 1996·72 cites·15 claims
- 0688US5313141AThree terminal inverter for electroluminescent lampsDUREL CORP·Filed 1993·Granted May 17, 1994·66 cites·15 claims
- 0787US5811930AElectroluminescent lamp devices and their manufactureDUREL CORP·Filed 1996·Granted Sep 22, 1998·70 cites·18 claims
- 0885US6320323B1EL driver with lamp discharge monitorDUREL CORP·Filed 2000·Granted Nov 20, 2001·34 cites·6 claims
- 0982US6462485B1EL driver for small semiconductor dieDUREL CORP·Filed 2001·Granted Oct 8, 2002·27 cites·7 claims
- 1080US5349269APower supply having dual inverters for electroluminescent lampsDUREL CORP·Filed 1993·Granted Sep 20, 1994·45 cites·16 claims
- 1179US6069444AElectroluminescent lamp devices and their manufactureDUREL CORP·Filed 1998·Granted May 30, 2000·47 cites·31 claims
- 1279US5502357ALow cost inverter for EL lampDUREL CORP·Filed 1994·Granted Mar 26, 1996·40 cites·10 claims
- 1379US5276382ALead attachment for electroluminescent lampDUREL CORP·Filed 1991·Granted Jan 4, 1994·48 cites·21 claims
- 1478US5830028ARoll coated EL panelDUREL CORP·Filed 1997·Granted Nov 3, 1998·46 cites·10 claims
- 1575US5711594ATubular EL lampDUREL CORP·Filed 1994·Granted Jan 27, 1998·34 cites·15 claims
- 1675US5332946AElectroluminescent lamp with novel edge isolationDUREL CORP·Filed 1992·Granted Jul 26, 1994·41 cites·28 claims
- 1774US5508585AElectroluminescent lamp with controlled field intensity for displaying graphicsDUREL CORP·Filed 1995·Granted Apr 16, 1996·35 cites·8 claims
- 1872US5789870ALow noise inverter for EL lampDUREL CORP·Filed 1996·Granted Aug 4, 1998·36 cites·10 claims
- 1971US5770920AElectroluminescent lamp having a terpolymer binderDUREL CORP·Filed 1995·Granted Jun 23, 1998·39 cites·20 claims
- 2068US6611109B2Infrared emitting EL lampDUREL CORP·Filed 2001·Granted Aug 26, 2003·13 cites·12 claims
- 2168US6445128B1EL panel made with low molecular weight PVDF/HFP resinDUREL CORP·Filed 1999·Granted Sep 3, 2002·26 cites·16 claims
- 2268US5347198ALow cost AC switch for electroluminescent lampsDUREL CORP·Filed 1993·Granted Sep 13, 1994·26 cites·9 claims
- 2367US5821691AEL panel with continuous contacts on back of panelDUREL CORP·Filed 1997·Granted Oct 13, 1998·31 cites·10 claims
- 2466US6597123B1Inverter for driving EL lamp and liquid crystal displayDUREL CORP·Filed 2003·Granted Jul 22, 2003·9 cites·9 claims
- 2566US6204609B1Enhanced inverter for powering an EL lampDUREL CORP·Filed 2000·Granted Mar 20, 2001·11 cites·3 claims
- 2662US6787993B2Ink including low molecular weight PVDF/HFP resinDUREL CORP·Filed 2002·Granted Sep 7, 2004·9 cites·3 claims
- 2761US6806642B2Light source with cascading dyes and BEFDUREL CORP·Filed 2001·Granted Oct 19, 2004·8 cites·1 claims
- 2861US6580222B2Inverter for driving EL lamp and light emitting diodesDUREL CORP·Filed 2001·Granted Jun 17, 2003·7 cites·10 claims
- 2961US6297597B1EL driver with low side current mirrorsDUREL CORP·Filed 2000·Granted Oct 2, 2001·8 cites·3 claims
- 3060US6528943B2EL lamp with increased phosphor densityDUREL CORP·Filed 2001·Granted Mar 4, 2003·10 cites·6 claims
- 3159US6818326B2EL lamp with flexible areasDUREL CORP·Filed 2002·Granted Nov 16, 2004·4 cites·16 claims
- 3258US6259619B1EL driver with reduced pin countDUREL CORP·Filed 2000·Granted Jul 10, 2001·6 cites·6 claims
- 3357US5697322AAnalog display having electroluminescent pointerDUREL CORP·Filed 1996·Granted Dec 16, 1997·28 cites·16 claims
- 3456US6433476B1EL lamp with heater electrodeDUREL CORP·Filed 2000·Granted Aug 13, 2002·8 cites·12 claims
- 3555US5889364AElectrical, solderless snap connector for EL lampDUREL CORP·Filed 1997·Granted Mar 30, 1999·17 cites·12 claims
- 3655US5483503ASplit chip inverter for EL lampDUREL CORP·Filed 1995·Granted Jan 9, 1996·17 cites·5 claims
- 3753US6091164ASingle inverter with dual boostDUREL CORP·Filed 1998·Granted Jul 18, 2000·20 cites·11 claims
- 3848US6111362AControlling color shift in EL phosphorsDUREL CORP·Filed 1998·Granted Aug 29, 2000·13 cites·9 claims
- 3948US5621274ALaminated EL displayDUREL CORP·Filed 1996·Granted Apr 15, 1997·12 cites·6 claims
- 4047US6411726B1Fingerprint detector using an EL lampDUREL CORP·Filed 1998·Granted Jun 25, 2002·29 cites·8 claims
- 4147US5598382ADual plane EL panelDUREL CORP·Filed 1995·Granted Jan 28, 1997·10 cites·12 claims
- 4240US6343027B1Transformerless high voltage inverter using a fourth-order impedance networkDUREL CORP·Filed 2001·Granted Jan 29, 2002·4 cites·11 claims
- 4339US6787988B2Process for treating previously coated phosphor particlesDUREL CORP·Filed 2001·Granted Sep 7, 2004·0 cites·10 claims
- 4439US5806389AEL lamp with beveled edgeDUREL CORP·Filed 1996·Granted Sep 15, 1998·5 cites·7 claims
- 4538US5806954AMoving pointer with edgewise EL lampDUREL CORP·Filed 1995·Granted Sep 15, 1998·12 cites·12 claims
- 4637US2005067952A1Flexible, molded EL lampDUREL CORP·Filed 2003·Application pending·0 cites
- 4736US6407507B1Personal electronic device having EL lamp and buzzer powered from a single inductorDUREL CORP·Filed 1996·Granted Jun 18, 2002·5 cites·17 claims
- 4836US6181589B1Half-bridge inverter for coupling an EL lamp to a high voltage DC railDUREL CORP·Filed 1999·Granted Jan 30, 2001·4 cites·5 claims
- 4934US2003067274A1EL lamp emitting encoded lightDUREL CORP·Filed 2001·Application pending·0 cites
- 5033US2002080597A1EL lamp for a front lit displayDUREL CORP·Filed 2000·Application pending·0 cites
Showing the top 50 of 52 patent records by PatentIndex Score.
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