Milwaukie, OR, United States of America

Richard G Johnson

This inventor holds 2 USPTO granted patents and 2 published patent applications. Top assignee: Warn Industries, Inc.. Active years: 1989-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Richard G Johnson. Retrieved from https://idiyas.com/inventor/richard-g-johnson-u65kdm9s

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

USPTO Granted Patents = 2 

% Patents Active = 100.0

Average Co-Inventor Count = 1.3

ph-index = 2

Forward Citations = 46(Granted Patents)


Location History:

  • Portland, OR (US) (1989)
  • Milwaukie, OR (US) (1993)

Company Filing History:


Years Active: 1989-1993

Loading Chart...
2 patents (USPTO):Explore Patents

Title: Richard G Johnson: Innovator in Winch Technology

Introduction

Richard G Johnson is a notable inventor based in Milwaukie, OR (US). He has made significant contributions to the field of winch technology, holding 2 patents that showcase his innovative approach to enhancing the functionality and safety of winches.

Latest Patents

Johnson's latest patents include the "Winch with Electronic Current Limiter" and the "Winch with Shut-Off Load Limiter." The "Winch with Electronic Current Limiter" features an electronic current limiter designed to shut off power to the drive motor when a load limit is reached. This invention utilizes a linear hall effect transducer mounted in a toroid surrounding a conductor carrying current to the motor. The transducer outputs a voltage that is compared to a regulated preset voltage, establishing a trip point. When the output voltage crosses this threshold, power to the winch drive motor is shut off. Additionally, the electronic current limiter includes a reset circuit and a time delay circuit to accommodate momentary overload conditions.

The "Winch with Shut-Off Load Limiter" is powered by an electric motor and incorporates a steel toroid that determines the magnetic field generated by the motor's current demand. A voltage-sensitive hall effect switch receives input from both the magnetic field and voltage. When the combined input activates the hall effect switch, it shuts off the motor. A potentiometer allows for the adjustment of the voltage input to vary the magnetic field demand necessary for activation.

Career Highlights

Richard G Johnson is currently employed at Warn Industries, Inc., where he continues to develop innovative solutions in winch technology. His work has significantly impacted the industry, enhancing the safety and efficiency of winch operations.

Collaborations

Johnson collaborates with Richard S Herndon, contributing to the advancement of their projects and innovations.

Conclusion

Richard G Johnson's contributions to winch technology through his patents demonstrate his commitment to innovation and safety in engineering. His work at Warn Industries, Inc. continues to influence the industry positively.

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]
Loading…