Grinnell, IA, United States of America

Lisle J Dunham

This inventor holds 9 USPTO granted patents and 3 published patent applications, plus 1 CIPO patent and 3 EPO patents. Top assignees: Vermeer Manufacturing Company, Inc., Kinze Manufacturing, Inc.. Active years: 2006-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Lisle J Dunham. Retrieved from https://idiyas.com/inventor/lisle-j-dunham-592ezok2

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

Calculating rank
USPTO Granted Patents = 9 

% Patents Active = 66.7

 

 

Average Co-Inventor Count = 3.1

ph-index = 4

Forward Citations = 101(Granted Patents)


Company Filing History:


Years Active: 2006-2025

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9 patents (USPTO):Explore Patents

Title: **Innovative Mind: The Contributions of Lisle J. Dunham**

Introduction

Lisle J. Dunham is a distinguished inventor based in Grinnell, IA, renowned for his innovative contributions to agricultural machinery. With a total of eight patents to his name, Dunham has significantly impacted the industry, particularly with his cutting-edge designs in rake wheel technology.

Latest Patents

Among his latest patents, Dunham's work on rake wheels for gathering crop material stands out. One patent describes a rake wheel designed for a raking apparatus that efficiently gathers crop material into a windrow. This design features a center hub and disks that secure and restrict the circumferential and axial movement of the rake wheel's tines. Another patent presents a rake wheel where a plurality of tines extend outward from the hub, complemented by support members that help manage the movement of the tines.

Career Highlights

Throughout his career, Dunham has played a crucial role in various esteemed companies, including Vermeer Manufacturing Company, Inc. and Kinze Manufacturing, Inc. His expertise in agricultural machinery design has made a lasting impact on these companies and the industry as a whole.

Collaborations

Dunham has collaborated with notable individuals, including coworkers Alan F. Barry and Ty Hartwick. Their combined efforts and shared knowledge have further fueled innovations in the field, contributing to the advancement of agricultural technologies.

Conclusion

Lisle J. Dunham exemplifies the spirit of innovation in agricultural machinery. His patents, particularly in rake wheel designs, highlight his dedication to improving farming practices and enhancing efficiency. As he continues to inspire others in the field, Dunham's legacy as a prominent inventor remains firmly established.

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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