Chicago, IL, United States of America

James R MacDonald

This inventor holds 2 USPTO granted patents and 2 published patent applications. Top assignee: Nalco Chemical Company. Active years: 1989-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: James R MacDonald. Retrieved from https://idiyas.com/inventor/james-r-macdonald-vsj6353u

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

USPTO Granted Patents = 2 

% Patents Active = 100.0

Average Co-Inventor Count = 2.7

ph-index = 2

Forward Citations = 50(Granted Patents)


Company Filing History:


Years Active: 1989-1994

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2 patents (USPTO):Explore Patents

Title: Innovations of James R MacDonald

Introduction

James R MacDonald is an accomplished inventor based in Chicago, IL (US). He has made significant contributions to the field of chemical engineering, particularly in boiler systems and water treatment processes. With a total of 2 patents to his name, MacDonald continues to push the boundaries of innovation in his industry.

Latest Patents

One of MacDonald's latest patents focuses on boiler system leak detection. This invention addresses the leakage of water from a boiler water system, where steam is generated from feedwater. The method involves determining the concentration of impurities in the boiler water by withdrawing fractions as blowdown while admitting additional feedwater. The concentration cycle value is a key aspect of this invention, as it helps maintain the efficiency and safety of boiler operations.

Another notable patent by MacDonald is related to the stabilization of soluble manganese in aqueous systems. This invention allows for the maintenance of soluble manganese species in the presence of halogen species by treating the water with specific water-soluble, nitrogen-containing compositions. This advancement is crucial for improving water quality in various applications.

Career Highlights

James R MacDonald is currently associated with Nalco Chemical Company, where he applies his expertise in chemical engineering to develop innovative solutions. His work has had a lasting impact on the industry, particularly in enhancing the efficiency of water treatment processes.

Collaborations

MacDonald has collaborated with notable colleagues such as Stanley C Avallone and Roger W Fowee. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and advancements in their respective fields.

Conclusion

James R MacDonald is a prominent inventor whose work in boiler systems and water treatment has led to significant innovations. His contributions continue to shape the industry and improve operational efficiencies.

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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