Morris Township, NJ, United States of America

David W Hagelbarger

This inventor holds 3 USPTO granted patents. Top assignee: Bell Telephone Laboratories. Active years: 1977-1982.

IDiyas Innovation Intelligence. (2026). Inventor Profile: David W Hagelbarger. Retrieved from https://idiyas.com/inventor/david-w-hagelbarger

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 = 1.7

ph-index = 3

Forward Citations = 135(Granted Patents)


Location History:

  • Morristown, NJ (US) (1977)
  • Morris Township, Morris County, NJ (US) (1981 - 1982)

Company Filing History:


Years Active: 1977-1982

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3 patents (USPTO):Explore Patents

Title: The Innovations of David W. Hagelbarger

Introduction

David W. Hagelbarger is a notable inventor based in Morris Township, NJ, with a significant contribution to the field of telecommunications. He holds three patents that showcase his innovative approach to enhancing communication technology. His work primarily focuses on integrating computer-based services with traditional telephone systems.

Latest Patents

Hagelbarger's latest patents include the General-purpose electronic telephone set base and the General-purpose electronic telephone station set. These inventions provide telephone subscribers with access to computer-based services through a comprehensive telephone station set. This set features a telephone handset for audio transduction, a video output display screen, and manual input key facilities that allow for programmable interaction. The design includes a full ASCII key set and additional buttons for standard computer service functions, enabling users to select different text portions displayed on the screen. The patents also detail various electrical and mechanical features that facilitate the integration of these components into a single housing.

Career Highlights

David W. Hagelbarger has made significant strides in his career while working at Bell Telephone Laboratories. His innovative contributions have played a crucial role in advancing telecommunications technology. His patents reflect a deep understanding of user interaction and the potential for integrating digital services into everyday communication devices.

Collaborations

Throughout his career, Hagelbarger has collaborated with notable colleagues, including Peter Steve Kubik and Robert V. Anderson. These collaborations have likely contributed to the development and refinement of his innovative ideas.

Conclusion

David W. Hagelbarger is a distinguished inventor whose work has significantly impacted the telecommunications industry. His patents demonstrate a forward-thinking approach to integrating technology with communication, paving the way for future innovations.

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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