Tigard, OR, United States of America

William R Stewart

This inventor holds 4 USPTO granted patents. Top assignee: A-Dec, Inc.. Active years: 1995-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: William R Stewart. Retrieved from https://idiyas.com/inventor/william-r-stewart-9pca29n9

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 = 3.2

ph-index = 4

Forward Citations = 134(Granted Patents)


Company Filing History:


Years Active: 1995-2007

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4 patents (USPTO):Explore Patents

Title: Innovations by William R. Stewart

Introduction

William R. Stewart is a notable inventor based in Tigard, Oregon. He has made significant contributions to the field of chair design, particularly in headrest mechanisms. With a total of 4 patents to his name, Stewart's work reflects a commitment to enhancing user comfort and functionality.

Latest Patents

Stewart's latest patents include innovative mechanisms for headrest support and adjustment. One of his inventions features a mechanism that allows for the selected adjustment of a headrest's position relative to the back of a chair. This design includes a body with a first pivotable connection near one end, which connects to the chair, and a second pivotable connection near the other end, which connects to the headrest. A selectively releasable locking mechanism retains the body in chosen angular positions, allowing for one-handed actuation. Another patent describes a similar mechanism that includes an elongate housing and support brackets pivotally connected at opposite ends. This design also features interleaved elongate plate members that can be clamped to hold the headrest in selected positions.

Career Highlights

William R. Stewart has been associated with A-dec, Inc., a company known for its innovative dental equipment and furniture. His work at A-dec has allowed him to focus on creating practical solutions that improve the ergonomics of seating.

Collaborations

Stewart has collaborated with notable colleagues such as Carl G. Nordstrom and Brian E. Bonn. Their combined expertise has contributed to the development of advanced mechanisms in chair design.

Conclusion

William R. Stewart's contributions to the field of chair design through his innovative patents demonstrate his dedication to improving user comfort and functionality. His work continues to influence the industry and enhance the experience of users worldwide.

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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