Madison, WI, United States of America

Donald E Stiemke

This inventor holds 16 USPTO granted patents and 2 published patent applications and 1 EPO patent, primarily in Exercise Equipment Design. Top assignees: Johnson Health Tech Co., Ltd, Johnson Health Tech., Nelson Industries, Inc.. Active years: 2002-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Donald E Stiemke. Retrieved from https://idiyas.com/inventor/donald-e-stiemke

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

Calculating rank
USPTO Granted Patents = 16 

% Patents Active = 62.5


Average Co-Inventor Count = 4.2

ph-index = 9

Forward Citations = 358(Granted Patents)


Company Filing History:


Years Active: 2002-2026

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Areas of Expertise:
Mobility Mechanism
Exercise Apparatus
Control Interfaces
Stationary Equipment
Air Cleaner
Filter Housing
Inlet Shroud Seal
Safety Element
Retraction System
Low Profile Duct
Anti-Rotation Stop
16 patents (USPTO):Explore Patents

Title: The Innovations of Donald E. Stiemke

Introduction

Donald E. Stiemke is a notable inventor based in Madison, Wisconsin, recognized for his contributions to the field of exercise equipment. With a total of 14 patents to his name, Stiemke has made significant advancements in the design and functionality of stationary exercise devices.

Latest Patents

Among his latest innovations is a stationary exercise apparatus featuring variable footpaths. This device includes a robust frame, a pair of supporting members that rotate about an axis and move along a reciprocating path, and pedals that are joined to the supporting members. Additionally, it incorporates a guider assembly that allows users to adjust the incline angle of the reciprocating path, enhancing the versatility and effectiveness of the exercise experience.

Career Highlights

Stiemke has had a distinguished career, working with prominent companies such as Johnson Health Tech Co., Ltd and Nelson Industries, Inc. His experience in these organizations has contributed to his expertise in developing innovative exercise solutions.

Collaborations

Throughout his career, Stiemke has collaborated with talented individuals, including Mark J. Kannel and Hung-Mao Liao. These partnerships have fostered a creative environment that has led to the development of groundbreaking inventions.

Conclusion

Donald E. Stiemke's contributions to the field of exercise equipment through his patents and collaborations highlight his innovative spirit and dedication to improving fitness technology. His work continues to influence the industry and inspire future inventors.

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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