Hagen, Germany

Friedrich Wilhelm Dannehl

This inventor holds 3 USPTO granted patents and 1 published patent application and 1 EPO patent. Top assignees: Dbt Gmbh, Dbt Deutsche Bergbau-Technik Gmbh. Active years: 2001-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Friedrich Wilhelm Dannehl. Retrieved from https://idiyas.com/inventor/friedrich-wilhelm-dannehl

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

USPTO Granted Patents = 3 

% Patents Active = 100.0

 

Average Co-Inventor Count = 2.8

ph-index = 3

Forward Citations = 10(Granted Patents)


Company Filing History:


Years Active: 2001-2007

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3 patents (USPTO):Explore Patents

Title: Friedrich Wilhelm Dannehl: Innovator in Hydraulic Support Systems

Introduction

Friedrich Wilhelm Dannehl is a notable inventor based in Hagen, Germany. He has made significant contributions to the field of hydraulic support systems, particularly in underground mining applications. With a total of 3 patents to his name, Dannehl's work has advanced the technology used in hydraulic supports, enhancing safety and efficiency in mining operations.

Latest Patents

Dannehl's latest patents include innovative designs that address critical challenges in hydraulic support systems. One of his notable inventions is the Hydraulic Shield Support, which features adjustable-length hydraulic props that support a dedicated shield. This system is designed to connect through a control bank to a hydraulic fluid supply, allowing for the application of pressure levels that exceed the hydraulic fluid pressure. The inclusion of a pressure intensifier in the hydraulic pipe system enables the achievement of various pressure levels at each shield support, ensuring optimal performance in deep mining faces.

Another significant patent is the Lift Cylinder Assembly, which is designed for a hydraulic support frame used in underground mining. This assembly includes a lift cylinder that facilitates the lifting of base shoes during the advancing process. The design incorporates a plug-type locking system that allows for a quick and reliable connection between the supporting head and the drawbar, enhancing the efficiency of the hydraulic support frame.

Career Highlights

Throughout his career, Friedrich Wilhelm Dannehl has worked with prominent companies in the mining technology sector, including DBT GmbH and DBT Deutsche Bergbau-Technik GmbH. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in hydraulic support systems.

Collaborations

Dannehl has collaborated with several professionals in the field, including Werner Reinelt and Franz-Heinrich Suilmann. These collaborations have fostered a creative environment that has led to the development of cutting-edge technologies in hydraulic support systems.

Conclusion

Friedrich Wilhelm Dannehl's contributions to hydraulic support systems have significantly impacted the mining industry. His innovative patents and collaborative efforts have paved the way for safer and more efficient mining operations. Dannehl's work exemplifies the importance of innovation in addressing industry challenges.

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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