Davison, MI, United States of America

Bruce C Hartfelder

This inventor holds 1 USPTO granted patent. Top assignee: Gm Global Technolgoy Operations, Inc.. Active years: 1979.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Bruce C Hartfelder. Retrieved from https://idiyas.com/inventor/bruce-c-hartfelder

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


% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 1

Forward Citations = 15(Granted Patents)


Company Filing History:


Years Active: 1979

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1 patent (USPTO):Explore Patents

Title: Bruce C Hartfelder: Innovator in Engine Speed Control Technology

Introduction

Bruce C Hartfelder is an accomplished inventor based in Davison, MI (US). He has made significant contributions to the field of engine control systems, particularly with his innovative patent that addresses engine speed limitations. His work is vital for enhancing the safety and efficiency of gasoline engines.

Latest Patents

Hartfelder holds a patent for an "Engine speed limiting control circuit." This system is designed to limit the speed of a gasoline engine through a circuit that responds to engine speed. It provides control signals to a solenoid valve, which in turn regulates a vacuum actuator. This actuator overrides manual throttle control, moving the throttle toward a closed position when a governed engine speed is approached. The control circuit generates a signal with four components, including one proportional to engine speed and others related to engine acceleration. Additionally, a speed switch activates during overspeed conditions to enhance system stability and governing action.

Career Highlights

Bruce C Hartfelder is associated with GM Global Technology Operations, Inc., where he applies his expertise in engine control technologies. His innovative approach has contributed to advancements in automotive engineering, particularly in enhancing engine performance and safety.

Collaborations

Hartfelder has worked alongside his coworker, Roland G Kibler, contributing to the development of cutting-edge technologies in the automotive sector.

Conclusion

Bruce C Hartfelder's contributions to engine speed control technology exemplify the importance of innovation in the automotive industry. His patent reflects a commitment to improving engine safety and efficiency, marking him as a notable figure in the field.

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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