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For the Inventor, By the Inventor

Forchheim, Germany

Hans-Joachim Felkl

This inventor holds 10 USPTO granted patents and 14 EPO patents. Top assignees: Siemens Aktiengesellschaft, Primetals Technologies Germany Gmbh. Active years: 1994-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hans-Joachim Felkl. Retrieved from https://idiyas.com/inventor/hans-joachim-felkl

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

USPTO Granted Patents = 10

% Patents Active = 40.0

 

Average Co-Inventor Count = 1.2

ph-index = 1

Forward Citations = 22(Granted Patents)


Location History:

  • Esslingen, DE (1994)
  • Forchheim, DE (2012 - 2017)

Company Filing History:

goldMedal8 out of 30,886 
 
Siemens Aktiengesellschaft
 patents
silverMedal2 out of 73 
 
Primetals Technologies Germany Gmbh
 patents

Years Active: 1994-2017

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10 patents (USPTO):Explore Patents
1. 9836067 - Hydraulic arrangement having decoupled operation of two valve devices (2017-12-05),
2. 9638515 - Method for actuating a tandem roll train, control and/or regulating device for a tandem roll train, machine-readable program code, storage medium and tandem roll train (2017-05-02),
3. 9050637 - Operating method for introducing a product to be rolled into a roll stand of a roll mill, control device, data carrier, and roll mill for rolling a strip-type product to be rolled (2015-06-09),
4. 8731702 - Continuous rolling train with integration and/or removal of roll stands during ongoing operation (2014-05-20),
5. 8635895 - Method for cooling a hot strip wound to a hot strip bundle, a device for cooling a hot strip, a control and/or a regulation device and metal strip (2014-01-28),
6. 8516869 - Operating method for a cold-rolling line train with improved dynamics (2013-08-27),
7. 8459075 - Regulation method for a cold-rolling mill train with complete mass flow regulation (2013-06-11),
8. 8408032 - Controlling arrangement for a rolling stand and items corresponding thereto (2013-04-02),
9. 8186195 - Operating method for a multi-stand rolling mill train with strip thickness determination on the basis of the continuity equation (2012-05-29),
10. 5353217 - Control system with pilot controller, especially for a roll stand (1994-10-04),

Title: Innovations of Hans-Joachim Felkl

Introduction

Hans-Joachim Felkl is a notable inventor based in Forchheim, Germany. He holds a total of 10 patents, showcasing his significant contributions to the field of hydraulic systems and machinery. His work has been instrumental in advancing technology in various applications.

Latest Patents

One of his latest patents is a hydraulic arrangement that allows for the decoupled operation of two valve devices. This invention relates to a hydraulic actuator that can be controlled by a main valve and an auxiliary valve. The system includes a main regulator and an auxiliary regulator, each with specific components that work together to optimize the performance of the hydraulic actuator. Another significant patent involves a method for actuating a tandem roll train, particularly for producing metal strips. This method utilizes cascade control to adapt the speeds of multiple drives, ensuring efficient production.

Career Highlights

Throughout his career, Hans-Joachim Felkl has worked with prominent companies such as Siemens Aktiengesellschaft and Primetals Technologies Germany GmbH. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in hydraulic technology.

Collaborations

He has collaborated with notable colleagues, including Andre Berghs and Hans-Peter Trondle, further enhancing his work through shared expertise and insights.

Conclusion

Hans-Joachim Felkl's contributions to hydraulic systems and machinery through his patents and collaborations highlight his role as a significant inventor in the field. His innovative solutions continue to impact the industry positively.

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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