National Signal, Inc.

Calculating rank

USPTO Granted Patents = 8

% Expired Patents = 12.5

Forward Citations = 10

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4 inventors (with patents filed for the assignee):

Guadalupe Martinez (5 out of 5 patents)

Mark Fernandez (3 out of 3 patents)

Kim Kwok (2 out of 2 patents)

4. Carl L Erwin (1 out of 6 patents)

8 patents: Sort by Forward Citations

1. 12681507 - Software and assembly for pointing and tilting solar panels (2026-07-14),

2. 12529458 - Energy management of a portable solar lighting tower (2026-01-20),

3. 12152758 - Energy management of a portable solar lighting tower (2024-11-26),

4. D1003254 - Solar light tower control user interface (2023-10-31),

5. 11767955 - Energy management of a portable solar lighting tower (2023-09-26),

6. D653140 - Signal shift device (2012-01-31),

7. D652752 - Signal shift device (2012-01-24),

8. 6971196 - Message sign (2005-12-06),

Company Overview

National Signal, Inc. is a leading provider of traffic control products and services. With over 50 years of experience, we offer a wide range of traffic signal equipment, including controllers, cabinets, and LED lighting solutions. Our team of experts is dedicated to providing top-notch customer service and innovative solutions to meet the needs of our clients. Visit our website to learn more about our products and services.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

8 Patents

#9 in La Mirada, CA

#8,543 in California

#35,941 in US

La Mirada, CA, United States of America