Wolfsburg, Germany

Stephan Kellner

This inventor holds 1 USPTO granted patent and 5 EPO patents. Top assignee: Volkswagen Ag. Active years: 2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Stephan Kellner. Retrieved from https://idiyas.com/inventor/stephan-kellner-w5z1mhf8

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


 

Average Co-Inventor Count = 2.0

ph-index = 1


Company Filing History:


Years Active: 2021

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1 patent (USPTO):Explore Patents

Title: The Innovations of Stephan Kellner

Introduction

Stephan Kellner is a notable inventor based in Wolfsburg, Germany. He has made significant contributions to the field of exhaust gas aftertreatment systems for internal combustion engines. His innovative approach addresses the critical issue of nitrogen oxide emissions, which are a major concern in automotive engineering.

Latest Patents

Kellner holds a patent for an "Exhaust gas aftertreatment system and method for exhaust gas aftertreatment in an internal combustion engine." This system includes an exhaust gas channel with at least two aftertreatment components designed for the selective catalytic reduction of nitrogen oxides. A burner is strategically placed to heat the exhaust gas before it enters the second aftertreatment component, enhancing the efficiency of the process. Additionally, an oxidation catalytic converter is included to convert unburned hydrocarbons, further improving emissions control.

Career Highlights

Throughout his career, Kellner has worked with prominent companies in the automotive industry, including Volkswagen Aktiengesellschaft and Volkswagen AG. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in vehicle emissions technology.

Collaborations

Kellner has collaborated with notable colleagues such as Johannes Bunkus and Ingo Blei. Their combined expertise has fostered a productive environment for innovation and development in exhaust gas aftertreatment systems.

Conclusion

Stephan Kellner's work in exhaust gas aftertreatment systems exemplifies the importance of innovation in reducing automotive emissions. His patent and collaborations highlight his commitment to advancing technology in the automotive sector.

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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