Ankeny, IA, United States of America

John R Durfee

This inventor holds 3 USPTO granted patents. Top assignees: Western International, Inc., Noma Outdoor Products Inc.. Active years: 1987-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: John R Durfee. Retrieved from https://idiyas.com/inventor/john-r-durfee

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 = 2.8

ph-index = 3

Forward Citations = 34(Granted Patents)


Company Filing History:


Years Active: 1987-1990

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3 patents (USPTO):Explore Patents

Title: The Innovative Journey of John R. Durfee

Introduction

John R. Durfee, an inventive mind hailing from Ankeny, Iowa, has made significant contributions to the world of outdoor equipment through his groundbreaking inventions. With a total of three patents to his name, Durfee's creativity and engineering prowess have led to advancements in lawn care technology that benefit both consumers and manufacturers alike.

Latest Patents

Among Durfee's latest patents is the innovative lawn mower body, designed to enhance efficiency and functionality in lawn maintenance. Another notable invention is the rotary driven cultivator, which features a support arm strategically placed between the clutch casing and gearbox. This improved rotary cultivator includes essential components such as a prime mover, a gearbox, and rotary-driven tines. The engine mount casing, positioned between the prime mover and gearbox, serves to secure these elements together, forming a cohesive and efficient operational unit.

Career Highlights

Throughout his career, John R. Durfee has garnered experience with esteemed companies such as Western International, Inc. and Noma Outdoor Products Inc. His work with these firms allowed him to apply his innovative ideas in real-world applications, leading to the creation of user-friendly and efficient outdoor tools.

Collaborations

Durfee's journey in the field of inventions has been marked by collaborations with notable individuals in the industry. He has worked alongside coworkers such as David G. Stephenson and Harlan J. Trefz, contributing to a creative environment that fosters innovation and teamwork.

Conclusion

In summary, John R. Durfee's inventive spirit and dedication to improving outdoor equipment have left an impactful legacy in the industry. His three patents serve as a testament to his commitment to innovation and creativity, ensuring that users benefit from enhanced garden care solutions. As he continues to innovate, Durfee remains a notable figure in the realm of inventions.

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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