St. Louis Park, MN, United States of America

Richard P Ryan

This inventor holds 1 USPTO granted patent. Top assignee: Donaldson Comapny, Inc.. Active years: 1995.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Richard P Ryan. Retrieved from https://idiyas.com/inventor/richard-p-ryan-vz4m1yjy

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 = 5.0

ph-index = 1

Forward Citations = 6(Granted Patents)


Company Filing History:


Years Active: 1995

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1 patent (USPTO):Explore Patents

Title: Richard P. Ryan: Innovator in Diesel Engine Exhaust Filtration

Introduction

Richard P. Ryan is a notable inventor based in St. Louis Park, MN (US). He has made significant contributions to the field of diesel engine exhaust filtration. His innovative approach has led to the development of a unique filter cartridge arrangement that enhances the efficiency of exhaust systems.

Latest Patents

Richard P. Ryan holds a patent for a "Filter cartridge arrangement." This invention is designed to trap particulates from diesel engine exhaust. The filter cartridge arrangement includes heat enhancement elements that improve the filtration process. In one configuration, exhaust gases flow through the filter cartridge from inside to out, featuring an inner tubular heater. The heat enhancement elements consist of a heat insulator that plugs the downstream end of the cartridge, along with flow distribution rings that promote even flow through the cartridge. Additionally, there is a mechanism for controlling regeneration based on vehicle system voltage and pre-energization heater temperature. In another configuration, the filter cartridge has flow from outside to in, utilizing an outer heater and a tubular, non-filtering, heat insulating sleeve about the heater.

Career Highlights

Richard P. Ryan is currently employed at Donaldson Company, Inc., where he continues to innovate in the field of filtration technology. His work has been instrumental in advancing the efficiency and effectiveness of diesel engine exhaust systems.

Collaborations

Throughout his career, Richard has collaborated with notable colleagues, including Wayne M. Wagner and Bruce B. Hoppenstedt. These collaborations have contributed to the development of advanced filtration solutions.

Conclusion

Richard P. Ryan's contributions to diesel engine exhaust filtration demonstrate his commitment to innovation and excellence in engineering. His patented inventions reflect a deep understanding of the challenges in exhaust systems and provide effective solutions for improved performance.

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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