Los Alamos, NM, United States of America

S Fredric Marsh

This inventor holds 1 USPTO granted patent. Top assignee: University of California. Active years: 1997.

IDiyas Innovation Intelligence. (2026). Inventor Profile: S Fredric Marsh. Retrieved from https://idiyas.com/inventor/s-fredric-marsh

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 = 3.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 1997

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1 patent (USPTO):Explore Patents

Title: S Fredric Marsh: Innovator in Ion Exchange Polymers

Introduction

S Fredric Marsh is a notable inventor based in Los Alamos, NM (US). He has made significant contributions to the field of ion exchange polymers, particularly in the area of anion separations. His work has implications for various applications in chemistry and environmental science.

Latest Patents

Marsh holds a patent for "Ion exchange polymers for anion separations." This patent describes anion exchange resins that include at least two positively charged sites and a well-defined spacing between these positive sites. The process outlined in the patent involves removing anions or anionic metal complexes from aqueous solutions using such resins. The resins can be substituted poly(vinylpyridine) and substituted polystyrene, showcasing innovative approaches to ion exchange technology.

Career Highlights

S Fredric Marsh is affiliated with the University of California, where he continues to engage in research and development. His work has contributed to advancements in materials science and has been recognized within the academic community.

Collaborations

Marsh has collaborated with notable colleagues, including Gordon D Jarvinen and Richard A Bartsch. These collaborations have likely enriched his research and expanded the impact of his innovations.

Conclusion

S Fredric Marsh's contributions to ion exchange polymers exemplify the importance of innovation in scientific research. His patent and ongoing work at the University of California highlight his role as a key figure in advancing this field.

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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