Bay City, MI, United States of America

James R Dewald

This inventor holds 9 USPTO granted patents. Top assignee: The Dow Chemical Company. Active years: 1977-1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: James R Dewald. Retrieved from https://idiyas.com/inventor/james-r-dewald

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 = 1.8

ph-index = 5

Forward Citations = 1,098(Granted Patents)


Company Filing History:


Years Active: 1977-1989

Loading Chart...
9 patents (USPTO):Explore Patents

Title: The Innovations of James R. Dewald

Introduction

James R. Dewald is a notable inventor based in Bay City, MI (US). He has made significant contributions to the field of chemistry, particularly in the development of catalysts and polyamines. With a total of 9 patents to his name, Dewald's work has had a considerable impact on various industrial applications.

Latest Patents

Dewald's latest patents include a method for preparing an .alpha.-substituted styrene, which involves a catalyst consisting of .gamma.-alumina. This catalyst is crucial for the dehydrohalogenation of .alpha.-haloalkylbenzenes, leading to the production of valuable styrene compounds. Another significant patent focuses on hydrolytically-stable dense star polyamines. These polyamines exhibit greater reactivity compared to conventional star polyamines, making them useful in various applications such as calibration standards and size-selective membranes.

Career Highlights

Throughout his career, Dewald has been associated with The Dow Chemical Company, where he has contributed to numerous innovative projects. His expertise in catalysis and polymer chemistry has positioned him as a key figure in the development of advanced materials.

Collaborations

Dewald has collaborated with several esteemed colleagues, including Donald A. Tomalia and Lowell D. Markley. These partnerships have fostered a collaborative environment that has led to groundbreaking advancements in their respective fields.

Conclusion

James R. Dewald's contributions to the field of chemistry through his patents and collaborations highlight his innovative spirit and dedication to advancing technology. His work continues to influence various industries, showcasing the importance of innovation in scientific research.

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]
Loading…