Rochester, NY, United States of America

Robert A Hagen

This inventor holds 1 USPTO granted patent. Top assignee: General Signal Corporation. Active years: 1979.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Robert A Hagen. Retrieved from https://idiyas.com/inventor/robert-a-hagen-2s3nkkua

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 5.0

ph-index = 1

Forward Citations = 5(Granted Patents)


Company Filing History:


Years Active: 1979

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1 patent (USPTO):Explore Patents

Title: The Innovations of Robert A. Hagen

Introduction

Robert A. Hagen is a notable inventor based in Rochester, NY (US). He is recognized for his contributions to the field of railroad safety through his innovative designs. With a focus on improving visibility and safety at railroad crossings, Hagen has made significant strides in engineering.

Latest Patents

Hagen holds a patent for a Railroad Crossing Signal Lamp. This improved signal features a deep dish parabolic reflector and an essentially flat plastic lens that is angled forward at the top relative to the axis of the reflector. The lens incorporates prism elements that laterally disperse parallel light from the reflector, enhancing visibility toward the crossing highway at both near and far distances. Additionally, the lens includes prism elements that vertically disperse a portion of the light, ensuring uniform brightness before the signal.

Career Highlights

Hagen has made a mark in the industry through his work at General Signal Corporation. His innovative approach to safety signals has contributed to advancements in railroad crossing technology. His patent reflects his commitment to enhancing public safety through engineering.

Collaborations

Throughout his career, Hagen has collaborated with notable colleagues, including J.T. Barnes and Ronald W. Dinger. These partnerships have fostered a creative environment that has led to significant innovations in the field.

Conclusion

Robert A. Hagen's contributions to railroad safety through his innovative signal lamp design exemplify the impact of engineering on public safety. His work continues to influence the industry and improve safety measures at railroad crossings.

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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