Rochester Hills, MI, United States of America

Philipp A Seyfried

This inventor holds 1 USPTO granted patent. Top assignee: Gm Global Technolgoy Operations, Inc.. Active years: 2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Philipp A Seyfried. Retrieved from https://idiyas.com/inventor/philipp-a-seyfried-xok1dhj8

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 = 4.0

ph-index = 1


Company Filing History:


Years Active: 2023

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1 patent (USPTO):Explore Patents

Title: Innovations by Philipp A Seyfried in Engine Exhaust Systems

Introduction

Philipp A Seyfried is an accomplished inventor based in Rochester Hills, MI (US). He has made significant contributions to the field of engine systems, particularly in the area of exhaust emissions control. His innovative approach has led to the development of a patented technology that enhances the efficiency of catalytic converters.

Latest Patents

Philipp A Seyfried holds a patent for "Systems and methods of engine exhaust air injection before and after catalytic converters." This invention utilizes a dual air injection approach to control exhaust reactions and maintain temperatures below a maximum limit for exhaust system components during engine enrichment operation conditions. The design incorporates dual air injectors positioned in the exhaust system, with one located upstream and another downstream from the catalytic converter. This strategic placement aids in converting all hydrocarbon (HC), carbon monoxide (CO), and particulate matter (PM) emissions while ensuring that the catalyst temperature remains below the protection limit. The air injection quantity can be effectively controlled and diagnosed by monitoring the temperatures before and after the catalytic converter. The invention also allows for the use of either a three-way catalytic converter for cost efficiency or a downstream two-way catalytic converter for enhanced emission reduction if necessary. Philipp A Seyfried's patent represents a significant advancement in reducing harmful emissions from engines.

Career Highlights

Philipp A Seyfried is currently associated with GM Global Technology Operations LLC, where he continues to innovate and develop technologies that contribute to cleaner and more efficient engine systems. His work is pivotal in addressing the challenges of emissions control in modern vehicles.

Collaborations

Philipp has collaborated with notable colleagues, including Chengke Liu and Rafat F Hattar, who share his commitment to advancing automotive technology and reducing environmental impact.

Conclusion

Philipp A Seyfried's contributions to engine exhaust systems exemplify the importance of innovation in the automotive industry. His patented technology not only enhances engine performance but also plays a crucial role in reducing harmful emissions.

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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