Kittanning, PA, United States of America

Robert H Duffus

This inventor holds 1 USPTO granted patent. Top assignee: Ppg Industries, Inc.. Active years: 1981.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Robert H Duffus. Retrieved from https://idiyas.com/inventor/robert-h-duffus

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 = 1

Forward Citations = 10(Granted Patents)


Company Filing History:


Years Active: 1981

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1 patent (USPTO):Explore Patents

Title: The Innovations of Robert H. Duffus

Introduction

Robert H. Duffus is an accomplished inventor based in Kitanning, PA (US). He is known for his significant contributions to the field of regenerative furnaces, particularly in the melting glass industry. His innovative approach has led to the development of a unique patent that addresses common challenges in furnace technology.

Latest Patents

Robert H. Duffus holds a patent for a "Two regenerator-flue system for regenerative furnaces." This invention minimizes localized overheating of the regenerating regenerator packing and ensures more uniform heating of the regenerator packing by utilizing a second flue. The first flue passage remains in continuous contact with the regenerative packing, while the second passage connects to the first at both ends of the regenerative packing. Additionally, flow control dampers are strategically placed to regulate the passage of hot gas, allowing for even heating or cooling of the packing. This innovative design enhances the efficiency and effectiveness of regenerative furnaces.

Career Highlights

Robert H. Duffus is currently employed at PPG Industries, Inc., where he continues to apply his expertise in furnace technology. His work has significantly impacted the efficiency of glass melting processes, showcasing his dedication to innovation in the industry.

Collaborations

Robert has collaborated with Yih-Wan Tsai, further enhancing the development of technologies related to regenerative furnaces. Their combined efforts have contributed to advancements in the field.

Conclusion

Robert H. Duffus is a notable inventor whose work in regenerative furnace technology has led to significant advancements in the glass melting industry. His patent reflects a commitment to innovation and efficiency, making a lasting impact on the 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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