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North Bergen, NJ, United States of America

Duro-Test Corporation

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USPTO Granted Patents = 45

Forward Citations = 509

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22 inventors (with patents filed for the assignee):

Peter J Walsh (17 out of 18 patents)

Donald P Northrop (10 out of 12 patents)

Joel Shurgan (6 out of 6 patents)

4. Herbert S Strauss (5 out of 5 patents)

5. Luke Thorington (4 out of 4 patents)

6. Lawrence Sheinberg (4 out of 4 patents)

7. Ronald C Koo (3 out of 3 patents)

8. Donald G Trutner (3 out of 3 patents)

9. Wolfgang E Thouret (3 out of 3 patents)

10. Raymond P Fontana (2 out of 5 patents)

11. Gerald Schiazzano (2 out of 2 patents)

12. Arpad L Pirovic (2 out of 16 patents)

13. Rudolph Kaufman (2 out of 2 patents)

14. Lin Lin (1 out of 1 patent)

15. David P Strauss (1 out of 1 patent)

Core Competencies:

Fluorescent Lamp

Energy-Efficient

Phosphor Blends

Ballast System

High Intensity Discharge

Incandescent Lamp

Reflective Coating

Socket Adaptor

Color Filter

Hollow Glass

Filament Lifetime

Optical Finish

45 patents: Sort by Forward Citations

1. 6072284 - Three-way compact fluorescent lamp ballast and lamp holder incorporating (2000-06-06),

2. 5498924 - Fluorescent lamp capable of operating on multiple ballast system (1996-03-12),

3. 5122710 - Rare earth phosphor blends for fluorescent lamp using four to five (1992-06-16),

4. 4924368 - Fluorescent lamp with protective shield (1990-05-08),

5. 4891550 - Phosphor blend for broad spectrum fluorescent lamp (1990-01-02),

6. 4816714 - Corner cube array for use in incandescent lamps (1989-03-28),

7. 4792716 - Energy-efficient electric discharge lamp with reflective coating (1988-12-20),

8. 4758173 - Socket adaptor for fluorescent lamp (1988-07-19),

9. 4752718 - High intensity discharge lamp with integral means for arc extinguishing (1988-06-21),

10. 4745323 - Compact fluorescent lamp with outer envelope (1988-05-17),

11. 4734616 - Fluoresent lamp with double cathode and probe (1988-03-29),

12. 4728848 - Energy-efficient incandescent reflector lamp (1988-03-01),

13. 4714857 - Infrared reflective lamp with envelope having straight sections (1987-12-22),

14. 4707632 - Energy-efficient lamp (1987-11-17),

15. 4703220 - Incandescent lamp with extended filament lifetime (1987-10-27),

Company Overview

Duro-Test Corporation, based in North Bergen, NJ, specializes in the development and manufacturing of advanced lighting solutions. The company is known for its expertise in various lighting technologies, including compact fluorescent, fluorescent, incandescent, and high-intensity discharge lamps. Duro-Test focuses on energy-efficient lighting innovations and offers products that incorporate sophisticated phosphor blends and reflective coatings, catering to diverse applications in both commercial and residential sectors.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

45 Patents

#1 in North Bergen, NJ

#323 in New Jersey

#7,791 in US

#15,458 in the World

North Bergen, NJ, United States of America

Duro-Test Corporation

Forward Citations = 509

22 inventors:

Peter J Walsh (17 out of 18 patents)

Donald P Northrop (10 out of 12 patents)

Joel Shurgan (6 out of 6 patents)

4. Herbert S Strauss (5 out of 5 patents)

5. Luke Thorington (4 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Duro-Test Corporation. Retrieved from https://idiyas.com/company/duro-test

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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