Leeds, United Kingdom

Stephen James Watkins

This inventor holds 4 USPTO granted patents and 3 published patent applications, plus 1 CIPO patent and 2 EPO patents. Top assignees: Switched Reluctance Drives Limited, Ceres Intellectual Property Company Limited, Perkins Engines Company Limited. Active years: 1998-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Stephen James Watkins. Retrieved from https://idiyas.com/inventor/stephen-james-watkins

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

USPTO Granted Patents = 4 

% Patents Active = 100.0


 

Average Co-Inventor Count = 1.4

ph-index = 3

Forward Citations = 266(Granted Patents)


Company Filing History:


Years Active: 1998-2017

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4 patents (USPTO):Explore Patents

Title: Innovations of Stephen James Watkins

Introduction

Stephen James Watkins is a notable inventor based in Leeds, GB. He has made significant contributions to the field of motor control and power generation, holding a total of 4 patents. His work reflects a commitment to advancing technology in these areas.

Latest Patents

Watkins' latest patents include a method to control a switched reluctance motor. This innovative method involves energizing a phase winding to move a rotor relative to a stator. It also includes switching the phase winding between energized and freewheeling states to produce phase current pulses. Additionally, he has developed a power supply control system for connecting a fuel cell stack to an A.C. grid. This system features a voltage regulated D.C. bus and a bidirectional inverter, enhancing the efficiency of power generation.

Career Highlights

Throughout his career, Watkins has worked with several companies, including Switched Reluctance Drives Limited and Ceres Intellectual Property Company Limited. His experience in these organizations has contributed to his expertise in motor control and power systems.

Collaborations

Watkins has collaborated with notable individuals in his field, including Christopher John Evans and Charles Richard Elliott. These partnerships have likely enriched his work and led to further innovations.

Conclusion

Stephen James Watkins is a distinguished inventor whose work in motor control and power generation has led to multiple patents. His contributions continue to influence the technological landscape.

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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