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Chandler, AZ, United States of America

Durel Corporation

USPTO Granted Patents = 48

% Expired Patents = 22.9

Forward Citations = 760

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34 inventors (with patents filed for the assignee):

Robert Allen Kimball (11 out of 15 patents)

Ralph M McGuigan (10 out of 10 patents)

Rodney T Eckersley (9 out of 12 patents)

4. Brian Jeffrey Buell (8 out of 17 patents)

5. Charles I Zovko (6 out of 9 patents)

6. Robert J Krafcik (5 out of 7 patents)

7. Walter J Paciorek (4 out of 17 patents)

8. Dee Lynn Johnson (4 out of 23 patents)

9. Douglas T Wheeler (4 out of 4 patents)

10. Harold T Munson (4 out of 4 patents)

11. James H Butt (4 out of 5 patents)

12. David G Pires (3 out of 7 patents)

13. William A Coghlan (3 out of 5 patents)

14. Edward L Kinnally (3 out of 4 patents)

15. Will M Hooke (3 out of 3 patents)

Core Competencies:

Electroluminescent Lamp

Inverter

Phosphor Treatment

Cascading Dyes

Flexible Areas

High Voltage

Brightness Control

Power Supply

Low Noise

Modular Unit

Display Technology

Battery Operated

48 patents: Sort by Forward Citations

1. 6818326 - EL lamp with flexible areas (2004-11-16),

2. 6806642 - Light source with cascading dyes and BEF (2004-10-19),

3. 6787993 - Ink including low molecular weight PVDF/HFP resin (2004-09-07),

4. 6787988 - Process for treating previously coated phosphor particles (2004-09-07),

5. 6703781 - El lamp with light scattering particles in cascading layer (2004-03-09),

6. 6611109 - Infrared emitting EL lamp (2003-08-26),

7. 6597123 - Inverter for driving EL lamp and liquid crystal display (2003-07-22),

8. 6580222 - Inverter for driving EL lamp and light emitting diodes (2003-06-17),

9. 6528943 - EL lamp with increased phosphor density (2003-03-04),

10. 6465951 - Electroluminescent lamp devices and their manufacture (2002-10-15),

11. 6462485 - EL driver for small semiconductor die (2002-10-08),

12. 6445128 - EL panel made with low molecular weight PVDF/HFP resin (2002-09-03),

13. 6433476 - EL lamp with heater electrode (2002-08-13),

14. 6411726 - Fingerprint detector using an EL lamp (2002-06-25),

15. 6407507 - Personal electronic device having EL lamp and buzzer powered from a single inductor (2002-06-18),

Company Overview

Durel Corporation, based in Chandler, AZ, specializes in the development and manufacturing of advanced electroluminescent technologies. The company focuses on innovative solutions such as electroluminescent lamps, flexible EL panels, and high voltage inverters. Durel's expertise extends to phosphor particles and low molecular weight resins, enhancing brightness control and enabling applications in various industries. Their commitment to research in fingerprint detection technology further showcases their dedication to advancing display and sensing technologies.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

48 Patents

#9 in Chandler, AZ

#85 in Arizona

#7,288 in US

#14,561 in the World

Chandler, AZ, United States of America

Durel Corporation

Forward Citations = 760

34 inventors:

Robert Allen Kimball (11 out of 15 patents)

Ralph M McGuigan (10 out of 10 patents)

Rodney T Eckersley (9 out of 12 patents)

4. Brian Jeffrey Buell (8 out of 17 patents)

5. Charles I Zovko (6 out of 9 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Durel Corporation. Retrieved from https://idiyas.com/company/durel

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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