Palatine, IL, United States of America

Kathryn E Merwin

This inventor holds 1 USPTO granted patent and 3 published patent applications. Top assignee: Stepan Company. Active years: 2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kathryn E Merwin. Retrieved from https://idiyas.com/inventor/kathryn-e-merwin

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 1 

% Patents Active = 100.0

Average Co-Inventor Count = 5.0

ph-index = 1


Company Filing History:


Years Active: 2025

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1 patent (USPTO):Explore Patents

Title: Kathryn E Merwin: Innovator in Esterquat Compositions

Introduction

Kathryn E Merwin is a notable inventor based in Palatine, IL (US). She has made significant contributions to the field of chemistry, particularly in the development of concentrated liquid esterquat compositions. Her innovative work has led to advancements in the formulation of stable and environmentally friendly products.

Latest Patents

Kathryn holds 1 patent for her invention titled "Concentrated liquid esterquat compositions." This patent describes clear, stable concentrated liquid compositions that comprise from 30% to 90% by weight of an esterquat active, and from 10% to 50% by weight of a specific solvent system. The esterquat active is the quaternized reaction product of a fatty acyl source with an Iodine Value of 40 to 130, reacted with an alkanolamine at a fatty acyl to alkanolamine molar ratio of 1.0:1 to 2.2:1. The compositions have a VOC content of less than 5%, a Biorenewable Carbon Index (BCI) of at least 20, and a viscosity of less than 5000 cP at 25° C. These concentrated liquid compositions can be easily diluted in water to form stable aqueous dispersions.

Career Highlights

Kathryn is currently associated with Stepan Company, where she continues to innovate and develop new formulations. Her work has been instrumental in creating products that meet both performance and environmental standards.

Collaborations

Some of her coworkers include Dennis S Murphy and Teresa Germain, who have collaborated with her on various projects within the company.

Conclusion

Kathryn E Merwin's contributions to the field of esterquat compositions highlight her innovative spirit and commitment to developing sustainable solutions. Her work not only advances the industry but also sets a standard for future innovations.

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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