Haverhill, MA, United States of America

David L Sprague

This inventor holds 1 USPTO granted patent. Top assignee: At&t Bell Laboratories. Active years: 1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: David L Sprague. Retrieved from https://idiyas.com/inventor/david-l-sprague-4az342fl

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 = 2.0

ph-index = 1

Forward Citations = 13(Granted Patents)


Company Filing History:


Years Active: 1994

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1 patent (USPTO):Explore Patents

Title: The Innovations of David L. Sprague

Introduction

David L. Sprague is an accomplished inventor based in Haverhill, MA (US). He is known for his significant contributions to the field of telecommunications. His innovative work has led to the development of a unique system aimed at improving communication efficiency.

Latest Patents

David L. Sprague holds a patent for a "System for eliminating glare in virtual private line circuits." This application discloses a system designed to eliminate busy line conditions and ensure that calls can be completed over a virtual private line when multiple stations attempt to initiate a call simultaneously. The system operates in three distinct phases, enhancing the reliability of communication.

Career Highlights

Sprague has made notable strides in his career while working at AT&T Bell Laboratories. His work has focused on improving communication systems, showcasing his dedication to innovation in the telecommunications sector.

Collaborations

David L. Sprague has collaborated with fellow inventor David A. Redberg, contributing to advancements in their field. Their partnership has fostered a creative environment that encourages the development of new technologies.

Conclusion

David L. Sprague's contributions to telecommunications through his innovative patent demonstrate his commitment to enhancing communication systems. His work continues to influence the industry and pave the way for future advancements.

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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