Aachen, Germany

Christian Stiefel

This inventor holds 4 USPTO granted patents. Top assignees: Ringfeder Gmbh, Waggonfabrik Uerdingen A.g.. Active years: 1976-1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Christian Stiefel. Retrieved from https://idiyas.com/inventor/christian-stiefel

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 = 2.3

ph-index = 3

Forward Citations = 20(Granted Patents)


Company Filing History:


Years Active: 1976-1984

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4 patents (USPTO):Explore Patents

Title: Christian Stiefel: Innovator in Resilient Force Absorption

Introduction

Christian Stiefel is a notable inventor based in Aachen, Germany. He has made significant contributions to the field of resilient force absorption, holding a total of 4 patents. His innovative designs have applications in various operational conditions, particularly in the transportation sector.

Latest Patents

Stiefel's latest patents include an arrangement for resiliently absorbing forces. This arrangement features a housing and a resilient element designed as a friction spring. The friction spring consists of a plurality of inner and outer conical rings that work together with a lubricant. An additional body of lubricant is housed within the inner chamber formed by the rings, ensuring continuous replenishment during operation. Another patent focuses on a similar arrangement specifically for intermediate buffer couplings of rail vehicles. This design includes an elongated housing, a friction device, and a resilient element that cooperates with the friction device. The innovative use of telescopable cup-shaped members allows for effective accommodation of the friction spring rings.

Career Highlights

Throughout his career, Christian Stiefel has worked with reputable companies such as Ringfeder GmbH and Waggonfabrik Uerdingen AG. His experience in these organizations has contributed to his expertise in developing advanced solutions for force absorption.

Collaborations

Stiefel has collaborated with notable individuals in his field, including Fritz Frederich and Josef Friedrichs. These partnerships have fostered innovation and the exchange of ideas, further enhancing his contributions to the industry.

Conclusion

Christian Stiefel's work in resilient force absorption showcases his innovative spirit and dedication to advancing technology. His patents reflect a commitment to improving operational efficiency in various applications.

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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