Sanford, ME, United States of America

Robert L Foisy

This inventor holds 2 USPTO granted patents. Top assignee: Sprague Electric Company. Active years: 1991.

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

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 = 1.3

ph-index = 2

Forward Citations = 17(Granted Patents)


Company Filing History:


Years Active: 1991

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2 patents (USPTO):Explore Patents

Title: The Innovations of Robert L. Foisy

Introduction

Robert L. Foisy is a notable inventor based in Sanford, Maine, known for his contributions to the field of electrical engineering. He holds 2 patents that showcase his innovative approach to capacitor technology. His work has significantly impacted the design and functionality of solid electrolyte capacitors.

Latest Patents

Foisy's latest patents include a "Molded Fuzed Solid Electrolyte Capacitor," which features a pocket within the molded casing that is of greater volume than a fuse passing through it. This design ensures that the fuse will not reestablish its conductive path after being blown. The pocket is created between layers of polyester tape, which insulates the cathode of the capacitor from its lead frame and protects the fuse from the molding material. Another significant patent is the "Method for Attaching a Fuse Wire to a Lead Frame." This method involves a standard tinned nickel-iron alloy lead frame with pairs of extending tab portions. A long piece of an exothermically alloyable fuse wire is held in contact with these tabs, and heat is applied to initiate progressive alloying, forming a metallurgical bond between the fuse strand and the tabs.

Career Highlights

Robert L. Foisy has made substantial contributions to Sprague Electric Company, where he has applied his expertise in capacitor technology. His innovative designs have enhanced the performance and reliability of electrical components, making a lasting impact in the industry.

Collaborations

Foisy has worked alongside Richard D. Baker, contributing to the development of advanced technologies in their field. Their collaboration has fostered innovation and improved product designs at Sprague Electric Company.

Conclusion

Robert L. Foisy is a distinguished inventor whose work in capacitor technology has led to significant advancements in electrical engineering. His patents reflect a commitment to innovation and excellence in design.

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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