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For the Inventor, By the Inventor

Brea, CA, United States of America

Carl L Erwin

This inventor holds 6 USPTO granted patents. Top assignees: Flex-O-Lite, Inc., National Signal, Inc., Signal, Inc.. Active years: 1988-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Carl L Erwin. Retrieved from https://idiyas.com/inventor/carl-l-erwin

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

USPTO Granted Patents = 6

% Patents Active = 83.3

Average Co-Inventor Count = 1.8

ph-index = 3

Forward Citations = 55(Granted Patents)


Location History:

  • La Mirada, CA (US) (1988)
  • Brea, CA (US) (1989 - 2005)

Company Filing History:

goldMedal3 out of 10 
 
Flex-O-Lite, Inc.
 patents
silverMedal1 out of 8 
 
National Signal, Inc.
 patents
bronzeMedal1 out of 1 
 
Signal, Inc.
 patent
4. 1 out of 834,513 
Other
 patents

Years Active: 1988-2005

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6 patents (USPTO):Explore Patents
1. 6971196 - Message sign (2005-12-06),
2. D341100 - Solar powered barricade light (1993-11-09),
3. D341099 - Solar powered barricade light (1993-11-09),
4. 4973190 - Barrel and barrel base (1990-11-27),
5. 4859983 - Plastic barricade (1989-08-22),
6. 4782783 - Traffic channelizer mountable vertical panel (1988-11-08),

Title: The Innovative Contributions of Carl L. Erwin

Introduction

Carl L. Erwin is a notable inventor based in Brea, California, with a remarkable portfolio of six patents. His work primarily focuses on innovative signage solutions that enhance communication and safety.

Latest Patents

Among his latest inventions is a message sign that features a panel with multiple ribs, each defining an interior channel. These ribs are arranged in parallel, allowing for effective illumination through lamps secured in openings within the ribs. The design includes two panels with ribs extending outwardly in opposite directions, creating junctures where channels intersect. This innovative approach not only improves visibility but also offers a method for manufacturing such message signs. Another significant invention is a solar-powered barricade light, showcasing his commitment to sustainable technology.

Career Highlights

Throughout his career, Carl has worked with several companies, including Flex-O-Lite, Inc. and Signal, Inc. His contributions to these organizations have been instrumental in developing advanced lighting and signage solutions.

Collaborations

Carl has collaborated with talented individuals such as Jack H. Kulp and Dusan Krulj, further enhancing the innovative spirit of his projects.

Conclusion

Carl L. Erwin's inventive spirit and dedication to innovation have led to significant advancements in signage technology. His contributions continue to impact the industry positively.

Profile summary based on public USPTO records.
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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