% Expired Patents = 25.0

Trademarks = 6

Forward Citations = 17

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4 inventors (with patents filed for the assignee):

John C Griffin (2 out of 9 patents)

William A Rademacher (2 out of 4 patents)

Jonathan Castle (2 out of 2 patents)

4. Marvin E Jones (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. D1023798 - Walk-through detector (2024-04-23),

2. 10976467 - Walk-through detector systems and methods (2021-04-13),

3. 7193524 - Systems and methods for a portable walk-through metal detector (2007-03-20),

4. 7145456 - Efficient electronics for a walk-through metal detector (2006-12-05),

Company Overview

Fisher Research Labs, Inc. is a leading manufacturer of metal detectors for various applications including treasure hunting, security screening, and industrial inspection. With over 85 years of experience, Fisher Research Labs has a reputation for producing high-quality, reliable metal detection equipment that is used by professionals and hobbyists around the world.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

4 Patents

#13 in El Paso, TX

#3,937 in Texas

#60,641 in US

El Paso, TX, United States of America

Fisher Research Labs, Inc.

Forward Citations = 17

4 inventors:

John C Griffin (2 out of 9 patents)

William A Rademacher (2 out of 4 patents)

Jonathan Castle (2 out of 2 patents)

4. Marvin E Jones (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Fisher Research Labs, Inc.. Retrieved from https://idiyas.com/company/fisher-research-labs

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

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]