Wilmington, DE, United States of America

Stearns T Putnam

This inventor holds 3 USPTO granted patents. Top assignee: Hercules Corporation. Active years: 1976.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Stearns T Putnam. Retrieved from https://idiyas.com/inventor/stearns-t-putnam

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 = 2.0

ph-index = 3

Forward Citations = 38(Granted Patents)


Company Filing History:


Years Active: 1976

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3 patents (USPTO):Explore Patents

Title: Stearns T Putnam: Innovator in Polymer Chemistry

Introduction

Stearns T Putnam is a notable inventor based in Wilmington, DE (US). He has made significant contributions to the field of polymer chemistry, particularly in the development of novel retention aid resins for paper fillers. With a total of 3 patents, his work has had a considerable impact on the industry.

Latest Patents

Putnam's latest patents include innovative cationic water-soluble polymeric reaction products. These resins are derived from the reaction of nitrogen compounds, such as ammonia, and base resins that are the reaction products of amino polymers and epoxides. One specific example of such a base resin is a cationic water-soluble polyaminopoly-ureylene-epihalohydrin resin. Another example is a cationic water-soluble poly(diallylamine)-epihalohydrin resin. These advancements are crucial for enhancing the efficiency of paper fillers.

Career Highlights

Stearns T Putnam has had a distinguished career at Hercules Corporation, where he has applied his expertise in polymer chemistry. His innovative approaches have led to the development of products that improve the quality and performance of paper manufacturing processes.

Collaborations

Putnam has worked alongside notable colleagues, including Herbert H Espy, contributing to various projects that push the boundaries of polymer science.

Conclusion

Stearns T Putnam's contributions to polymer chemistry and his innovative patents have established him as a key figure in the industry. His work continues to influence advancements in paper manufacturing and related fields.

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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