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For the Inventor, By the Inventor

Dortmund, Germany

Wilhelm Stewen

This inventor holds 5 USPTO granted patents. Top assignees: Ruhrkohle Ag, Dr. C. Otto & Comp. G.m.b.h., Firma Carl Still Gmbh & Co Kg. Active years: 1983-1986.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Wilhelm Stewen. Retrieved from https://idiyas.com/inventor/wilhelm-stewen-4nejlz3n

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

Calculating rank
USPTO Granted Patents = 5

% Patents Active = 100.0

Average Co-Inventor Count = 1.9

ph-index = 3

Forward Citations = 146(Granted Patents)


Location History:

  • Dortmund-Eichlinghofen, DE (1984)
  • Dortmund, DE (1983 - 1986)

Company Filing History:

goldMedal2 out of 69 
 
Ruhrkohle Ag
 patents
silverMedal1 out of 106 
 
Dr. C. Otto & Comp. G.m.b.h.
 patents
bronzeMedal1 out of 70 
 
Firma Carl Still Gmbh & Co Kg
 patents
4. 1 out of 1 
 
Ruhrkohle Aktiengesellscaft
 patent

Years Active: 1983-1986

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5 patents (USPTO):Explore Patents
1. 4614567 - Method and apparatus for selective after-quenching of coke on a coke (1986-09-30),
2. 4580908 - Thermometer for coke oven chamber walls (1986-04-08),
3. 4481011 - Coke oven charge mixtures with coal binder (1984-11-06),
4. 4421604 - Procedure to control quality of coal (1983-12-20),
5. 4385962 - Method for the production of coke (1983-05-31),

Title: Wilhelm Stewen: Innovator in Coke Processing Technology

Introduction

Wilhelm Stewen is a notable inventor based in Dortmund, Germany. He has made significant contributions to the field of coke processing technology, holding a total of 5 patents. His work has had a lasting impact on the industry, particularly in the methods and apparatuses used in coke production.

Latest Patents

Among his latest patents are innovative solutions such as a method and apparatus for selective after-quenching of coke and a thermometer designed for coke oven chamber walls. These inventions demonstrate his commitment to improving efficiency and safety in coke production processes.

Career Highlights

Throughout his career, Wilhelm Stewen has worked with prominent companies, including Ruhrkohle AG and Firma Carl Still GmbH & Co. KG. His experience in these organizations has allowed him to develop and refine his inventions, contributing to advancements in the industry.

Collaborations

Wilhelm Stewen has collaborated with several talented individuals, including Wilhelm Weskamp and Dieter Stahlherm. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.

Conclusion

Wilhelm Stewen's contributions to coke processing technology through his patents and collaborations highlight his role as a significant inventor in the field. His work continues to influence the industry and pave the way for future innovations.

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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