Los Alamos, NM, United States of America

C John Umbarger

This inventor holds 5 USPTO granted patents. Top assignees: The United States of America as Represented by the United States, The United States of America as Represented by the United States Energy, University of California. Active years: 1976-1986.

IDiyas Innovation Intelligence. (2026). Inventor Profile: C John Umbarger. Retrieved from https://idiyas.com/inventor/c-john-umbarger

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 = 2.7

ph-index = 5

Forward Citations = 52(Granted Patents)


Company Filing History:


Years Active: 1976-1986

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5 patents (USPTO):Explore Patents

Title: C John Umbarger: Innovator in Radiation Detection Technology

Introduction

C John Umbarger is a notable inventor based in Los Alamos, NM (US). He has made significant contributions to the field of radiation detection technology, holding a total of 5 patents. His innovative designs reflect a commitment to enhancing safety and efficiency in radiation monitoring.

Latest Patents

Among his latest patents is the "Wristwatch dosimeter," which utilizes a CdTe detector, a microprocessor, and an audio and/or visual alarm. This dosimeter is designed to fit within a conventional digital watch case, featuring an additional aperture that allows the detector to receive radiation. Another significant invention is the "Batteryless magneto-driven portable radiac." This device employs a hand-powered alternator to generate alternating voltage, which is then rectified and stored in a high-capacity capacitor. The resulting DC voltage powers a portable radiation detection instrument that includes a Geiger-Muller detector tube, an event counter, and an LCD display for visual output. The low power circuitry ensures that the capacitor can be charged sufficiently to provide power for at least 30 minutes, with a low voltage indicator on the LCD display to signal the need for manual recharging.

Career Highlights

C John Umbarger has worked with esteemed organizations, including the United States of America as represented by the United States and the University of California. His work has significantly impacted the development of radiation detection technologies.

Collaborations

Throughout his career, Umbarger has collaborated with notable individuals such as Michael A Wolf and David A Waechter. These partnerships have contributed to the advancement of his innovative projects.

Conclusion

C John Umbarger stands out as a key figure in the field of radiation detection technology, with a focus on practical and efficient solutions. His inventions continue to play a vital role in enhancing safety measures in various applications.

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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