Witten, Germany

Stefan Lemke

This inventor holds 2 USPTO granted patents. Top assignees: Mannesmann Aktiengesellschaft, Sms Demag Ag. Active years: 1999-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Stefan Lemke. Retrieved from https://idiyas.com/inventor/stefan-lemke-pbe7eamv

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


% Patents Active = 50.0

Average Co-Inventor Count = 4.0

ph-index = 1


Company Filing History:


Years Active: 1999-2006

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2 patents (USPTO):Explore Patents

Title: The Innovations of Stefan Lemke

Introduction

Stefan Lemke is a notable inventor based in Witten, Germany. He has made significant contributions to the field of metallurgy, particularly in the production of stainless steels. With a total of 2 patents, his work has advanced the methods used in steel manufacturing.

Latest Patents

One of his latest patents is a method for producing stainless steels, especially high-grade steels containing chromium and chromium-nickel. This invention involves a melting device that includes a metallurgical vessel or at least two vessels for supplying a steel-casting installation. The process alternates between an electric arc furnace and an air-refining process. The aim is to improve efficiency by carrying out a reversible treatment of unreduced converter slag in the electric-arc furnace mode. The method includes melting slag with a high chromium content and reducing it during the melting process under favorable thermodynamic conditions. The air-refining process subsequently reduces the carbon content to below 0.9%.

Another patent focuses on the process and device for making liquid iron using both non-electric and electric methods. This innovation further showcases Lemke's expertise in metallurgical processes.

Career Highlights

Throughout his career, Stefan Lemke has worked with prominent companies in the industry, including SMS Demag AG and Mannesmann Aktiengesellschaft. His experience in these organizations has contributed to his knowledge and expertise in steel production.

Collaborations

Lemke has collaborated with notable colleagues such as Karl Reiner Götzinger and Udo Falkenreck. These partnerships have likely enriched his work and led to further advancements in his field.

Conclusion

Stefan Lemke's contributions to metallurgy, particularly in stainless steel production, highlight his innovative spirit and dedication to advancing industrial processes. His patents reflect a commitment to improving efficiency and quality in steel manufacturing.

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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