Ratingen, Germany

Hans-Josef Giertz

This inventor holds 8 USPTO granted patents, plus 2 CIPO patents and 2 EPO patents. Top assignees: Deutsche Montan Technologie Gmbh, Bergwerksverband Gmbh, Dmt Corporation. Active years: 1981-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hans-Josef Giertz. Retrieved from https://idiyas.com/inventor/hans-josef-giertz

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


% Patents Active = 75.0



Average Co-Inventor Count = 3.1

ph-index = 2

Forward Citations = 12(Granted Patents)


Company Filing History:


Years Active: 1981-2011

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8 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Hans-Josef Giertz

Introduction

Hans-Josef Giertz is a notable inventor based in Ratingen, Germany. He holds a total of eight patents, showcasing his significant contributions to the field of engineering and technology. His work primarily focuses on methods and devices related to coke ovens, which are essential in the production of coke for the steel industry.

Latest Patents

Among his latest patents is a method and device for cleaning the door of a coke oven. This invention involves a cleaning process that utilizes high-pressure jet nozzles to effectively clean the sealing edge and membrane of the coke oven door. The method ensures that the interior surface of the membrane is thoroughly cleaned immediately after the coke oven chamber is opened. Another significant patent by Giertz is a method and apparatus for producing naphthalene from coke oven crude gas. This innovative process allows for the recovery of pure naphthalene by directly cooling hot crude coke oven gas and filtering out impurities, resulting in crystalline naphthalene without the need for additional treatment.

Career Highlights

Throughout his career, Hans-Josef Giertz has worked with prominent companies such as Deutsche Montan Technologie GmbH and Bergwerksverband GmbH. His experience in these organizations has contributed to his expertise in the field and has enabled him to develop groundbreaking inventions.

Collaborations

Giertz has collaborated with notable coworkers, including Franz Liesewitz and Friedrich-Wilhelm Cyris. Their combined efforts have likely fostered an environment of innovation and creativity, leading to the development of impactful technologies.

Conclusion

Hans-Josef Giertz's contributions to the field of engineering through his patents and collaborations highlight his role as a significant inventor. His innovative methods for cleaning coke oven doors and producing naphthalene demonstrate his commitment to advancing technology 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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