New Haven, CT, United States of America

John F Zwirlein, Jr

This inventor holds 6 USPTO granted patents. Top assignee: Olin Corporation. Active years: 1978-1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: John F Zwirlein, Jr. Retrieved from https://idiyas.com/inventor/john-f-zwirlein-jr

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 = 1.6

ph-index = 5

Forward Citations = 83(Granted Patents)


Company Filing History:


Years Active: 1978-1991

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6 patents (USPTO):Explore Patents

Title: Innovations by John F Zwirlein, Jr.

Introduction

John F Zwirlein, Jr. is a notable inventor based in New Haven, CT (US). He has made significant contributions to the field of foam dispensing technology, holding a total of 6 patents. His work focuses on enhancing the efficiency and functionality of foam dispensing apparatuses.

Latest Patents

Zwirlein's latest patents include innovative designs such as the "Valving rod with scraper device for foam dispensing apparatus." This invention features a composite valving rod that incorporates a low friction plastic sleeve retained by a steel tip. The design ensures that the physical dimensions of the plastic sleeve are maintained while also serving as a scraper when drawn through the bore of the foam dispensing cartridge, which is entirely metal. Another notable patent is the "Composite valving rod scraper device and cartridge." This invention also utilizes a composite valving rod with a low friction material sleeve, which is retained by scraping surfaces on opposing ends. This design not only maintains the dimensions of the plastic sleeve but also effectively scrapes residual foam from the cartridge, which is designed to be non-resilient and includes at least one elongated groove for foam collection.

Career Highlights

Zwirlein is currently employed at Olin Corporation, where he continues to innovate in the field of foam dispensing technology. His work has been instrumental in developing solutions that improve the performance and reliability of foam dispensing systems.

Collaborations

Throughout his career, Zwirlein has collaborated with notable colleagues, including William J Gates and William F Rosenplanter. These partnerships have contributed to the advancement of technology in their respective fields.

Conclusion

John F Zwirlein, Jr. is a distinguished inventor whose contributions to foam dispensing technology have made a significant impact. His innovative patents and collaborations reflect his commitment to advancing the industry.

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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