Franklin Park, IL, United States of America

Donald Bernard Koepke

This inventor holds 2 USPTO granted patents. Top assignees: Thomas International, Inc., Warwick Electronics Inc.. Active years: 1976-1979.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Donald Bernard Koepke. Retrieved from https://idiyas.com/inventor/donald-bernard-koepke

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


% Patents Active = 100.0

Average Co-Inventor Count = 1.0

ph-index = 2

Forward Citations = 10(Granted Patents)


Company Filing History:


Years Active: 1976-1979

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2 patents (USPTO):Explore Patents

Title: The Innovative Mind of Donald Bernard Koepke

Introduction: Donald Bernard Koepke, a distinguished inventor hailing from Franklin Park, IL, has made significant contributions to the field of musical instruments with his innovative designs. With a total of two patents to his name, Koepke's work showcases a deep understanding of both mechanical engineering and the artistic nuances of music.

Latest Patents: Koepke's most recent patents include a "Tab Switch Mechanism for Musical Instruments" and a "Double Touch Key for Musical Instruments." The Tab Switch Mechanism provides an improved solution for controlling multiple electrical switches within instruments like organs. This mechanism allows several tablets to be pressed simultaneously, ensuring that they can be retained in a depressed position, which is crucial for maintaining selected voicing circuits. Additionally, it features an automatic release system, facilitating seamless transitions when a user depresses another tablet. On the other hand, the Double Touch Key offers a unique design where the key lever pivots in response to varying amounts of depression. This mechanism not only enriches user experience but also introduces a noticeable difference in key feel based on the pivot point's transfer.

Career Highlights: Throughout his career, Donald Koepke has been associated with notable companies such as Warwick Electronics Inc. and Thomas International, Inc. His experiences at these organizations have undoubtedly sharpened his skills and inspired his inventive spirit, enabling him to develop innovative solutions for musical instrument functionalities.

Collaborations: While specific collaborations outside of his employment at Warwick Electronics and Thomas International are not mentioned, the insights gained from these associations likely informed his approaches to invention and design.

Conclusion: Donald Bernard Koepke’s inventive contributions have significantly impacted the landscape of musical instruments, enhancing how musicians interact with their art. His patents reflect not just his technical acumen but also a passion for music, demonstrating how innovation can bridge the gap between technology and artistic expression.

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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