Lingen, Germany

Friedhelm Vennmann

This inventor holds 3 USPTO granted patents. Top assignees: Benteler Werke Ag, Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft. Active years: 1981-1983.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Friedhelm Vennmann. Retrieved from https://idiyas.com/inventor/friedhelm-vennmann

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 = 3.8

ph-index = 2

Forward Citations = 23(Granted Patents)


Company Filing History:


Years Active: 1981-1983

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3 patents (USPTO):Explore Patents

Title: Friedhelm Vennmann: Innovator in Electric Arc Furnace Technology

Introduction

Friedhelm Vennmann is a notable inventor based in Lingen, Germany. He has made significant contributions to the field of electric arc furnace technology, holding three patents that showcase his innovative approaches to improving furnace operations.

Latest Patents

One of his latest patents is a method of lowering electrodes of an electric-arc furnace. This method involves completely swinging the furnace cover laterally away from the furnace vessel, allowing for the adjustment of the free lengths of the electrodes below the electrode clamps to ensure a stable electric arc. Another important patent is for a water-cooled wall element formed of tubes for melting furnaces. This design aims to replace the casing of refractory material in melting furnaces, particularly electric arc furnaces for melting steel. The wall element consists of horizontally extending and vertically superimposed tubes that facilitate efficient cooling and enhance the adhesion of insulating layers.

Career Highlights

Throughout his career, Vennmann has worked with several prominent companies, including Benteler Werke AG and Maschinenfabrik Augsburg-Nürnberg Aktiengesellschaft. His experience in these organizations has contributed to his expertise in furnace technology and innovation.

Collaborations

Vennmann has collaborated with notable coworkers such as Lothar Harmsen and Jurgen Zieschang. Their combined efforts have likely played a role in advancing the technologies associated with electric arc furnaces.

Conclusion

Friedhelm Vennmann's contributions to electric arc furnace technology through his patents and career experiences highlight his role as an influential inventor in the field. His innovative methods continue to impact the efficiency and effectiveness of melting processes in the industry.

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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