Dubuque, IA, United States of America

Joseph C Spencer

This inventor holds 2 USPTO granted patents. Top assignee: Deere & Company. Active years: 1980-1983.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Joseph C Spencer. Retrieved from https://idiyas.com/inventor/joseph-c-spencer-9kfoeq9g

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 = 1.5

ph-index = 2

Forward Citations = 11(Granted Patents)


Company Filing History:


Years Active: 1980-1983

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

Title: Joseph C Spencer: Innovator in Steering and Fuel Control Technologies

Introduction

Joseph C Spencer is a notable inventor based in Dubuque, IA (US). He has made significant contributions to the fields of steering systems and fuel injection technologies. With a total of 2 patents to his name, Spencer's work reflects his commitment to innovation and engineering excellence.

Latest Patents

One of Spencer's latest patents is the Load-responsive steering control valve. This innovative steering system features load-responsive valving that automatically directs pressure fluid to one of a pair of double-acting hydraulic actuators when steering resistance is low. Conversely, it routes pressure fluid to both actuators when steering resistance is high, enhancing the efficiency and responsiveness of the steering mechanism.

Another significant patent is the Solenoid-operated fuel flow control for fuel injection system. This invention includes a fuel flow control lever that is pivotably mounted for movement between fuel-off and fuel-on positions. The solenoid is linked to the control lever, and when de-energized, a spring holds the lever in the fuel-off position. The design allows for selective energization of coils to retract the plunger, moving the lever to the fuel-on position, thus optimizing fuel flow control.

Career Highlights

Joseph C Spencer is currently employed at Deere & Company, where he continues to develop innovative solutions in engineering. His work at Deere has allowed him to apply his inventive skills to practical applications that benefit the agricultural and machinery sectors.

Collaborations

Throughout his career, Spencer has collaborated with notable colleagues, including Wayne R Miller and David D Latham. These partnerships have fostered a creative environment that encourages the development of groundbreaking technologies.

Conclusion

Joseph C Spencer's contributions to steering and fuel control technologies exemplify his innovative spirit and dedication to engineering. His patents not only enhance the functionality of machinery but also reflect the importance of collaboration in the field of invention.

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…