St. Louis, MO, United States of America

Robert L Isenmann

This inventor holds 1 USPTO granted patent. Top assignee: Penn Corporation. Active years: 1976.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Robert L Isenmann. Retrieved from https://idiyas.com/inventor/robert-l-isenmann

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 = 1.0

ph-index = 1

Forward Citations = 64(Granted Patents)


Company Filing History:


Years Active: 1976

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1 patent (USPTO):Explore Patents

Title: The Innovative Mind of Robert L. Isenmann

Introduction

Robert L. Isenmann is an accomplished inventor based in St. Louis, MO. He is known for his innovative contributions to the field of practical everyday solutions. With a focus on functionality and user convenience, Isenmann has made a mark in the world of inventions.

Latest Patents

One of his notable patents is the Separable Key Holder. This invention features a releasable key ring connector that comprises plug and socket members designed to fit together snugly. The unique design allows them to separate upon pressure applied to one of the members. Additionally, key supporting means on each member accommodate separate key rings, enhancing the usability of the product. Isenmann holds 1 patent for this invention.

Career Highlights

Robert L. Isenmann is associated with Penn Corporation, where he applies his inventive skills to develop practical solutions. His work at the company reflects his commitment to innovation and improving everyday life through thoughtful design.

Conclusion

Robert L. Isenmann exemplifies the spirit of innovation with his practical inventions, particularly the Separable Key Holder. His contributions continue to influence the way we manage our keys and everyday items.

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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