Trademarks = 3

Forward Citations = 159

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8 inventors (with patents filed for the assignee):

Robert M Johnstone (3 out of 12 patents)

Arnold N Alderman (2 out of 2 patents)

William A Luca (1 out of 1 patent)

4. Robert D MacDonald, Jr (1 out of 1 patent)

5. John W Chu (1 out of 6 patents)

6. Paul R Lundgren (1 out of 1 patent)

7. Edward P Kozek (1 out of 1 patent)

8. James E Balcom (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 5461550 - Canopy mounting device for exit signs and the like (1995-10-24),

2. 5272605 - Canopy mounting device for exit signs and the like (1993-12-21),

3. 4843300 - Improved power supply for intermittently energizing an external device (1989-06-27),

4. 4837779 - Communicator and communication method and system (1989-06-06),

5. 4799039 - Emergency lighting supervisory system (1989-01-17),

6. 4742309 - Line receiver (1988-05-03),

7. 4561203 - Opaque sign plaque with dual reflector illumination (1985-12-31),

Company Overview

Dual-lite Manufacturing, Inc. is a leading manufacturer of innovative emergency lighting solutions. With over 50 years of experience in the industry, Dual-lite offers a wide range of products including exit signs, emergency lights, and inverters. Their commitment to quality and customer satisfaction has made them a trusted name in the emergency lighting market.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

7 Patents

#1 in Naguabo

#16 in Puerto Rico

Naguabo, Puerto Rico

Dual-Lite Manufacturing, Inc.

Forward Citations = 159

8 inventors:

Robert M Johnstone (3 out of 12 patents)

Arnold N Alderman (2 out of 2 patents)

William A Luca (1 out of 1 patent)

4. Robert D MacDonald, Jr (1 out of 1 patent)

5. John W Chu (1 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Dual-Lite Manufacturing, Inc.. Retrieved from https://idiyas.com/company/dual-lite-manufacturing

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]