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For the Inventor, By the Inventor

Erlangen, Germany

Stefan Künzel

USPTO Granted Patents = 12

 

Average Co-Inventor Count = 1.7

ph-index = 4

Forward Citations = 40(Granted Patents)


Company Filing History:

goldMedal12 out of 30,045 
 
Siemens Aktiengesellschaft
 patents

Years Active: 1998-2025

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12 patents (USPTO):Explore Patents
1. 12483184 - Temperature determination method for magnet temperatures on magnets of electric motors (2025-11-25),
2. 11726446 - Drive controller with self-contained correction function of position errors (2023-08-15),
3. 10972034 - Compensation of detent torques of synchronous motors (2021-04-06),
4. 10528027 - Attenuation of load oscillations without additional measuring means on the load side (2020-01-07),
5. 9712095 - Efficient damping of vibrations of an electric machine (2017-07-18),
6. 9146166 - Method and apparatus for determining an electrical torque of an electrical machine (2015-09-29),
7. 8729845 - Method and device for controlling an electric motor (2014-05-20),
8. 7047150 - Method for determining a rotor position of a synchronous motor (2006-05-16),
9. 7024332 - Method and device for identifying a faulty rotor position angle signal (2006-04-04),
10. 6903529 - Method and apparatus for damping mechanical oscillations of a shaft in machine tools, manufacturing machines and robots (2005-06-07),
11. 6900609 - Method and control structure for damping low-frequency load oscillations in drives with a motor and load (2005-05-31),
12. 5719482 - Process and device for field-oriented control of a polyphase machine (1998-02-17),

Title: Innovations of Inventor Stefan Künzel

Introduction

Stefan Künzel is a prominent inventor based in Erlangen, Germany. He has made significant contributions to the field of electrical engineering, particularly in the development of drive controllers and compensation methods for synchronous motors. With a total of 12 patents to his name, Künzel's work has had a substantial impact on the industry.

Latest Patents

One of Künzel's latest patents is a drive controller with a self-contained correction function for position errors. This innovative drive controller manages an electric drive of an electric machine that receives energy through a converter. It operates in both normal and special modes, where it determines control signals for the converter and adjusts the rotor shaft's position based on continuously received raw signals from a position sensor. Another notable patent addresses the compensation of detent torques in synchronous motors. This method involves measuring detent torques on a reference motor and determining a compensation current to counteract detent torque at various operating points.

Career Highlights

Stefan Künzel is currently employed at Siemens Aktiengesellschaft, a leading global technology company. His work at Siemens has allowed him to collaborate on various innovative projects that enhance the efficiency and performance of electrical systems. Künzel's expertise in drive control and motor technology has positioned him as a key figure in his field.

Collaborations

Throughout his career, Künzel has worked alongside talented colleagues, including Mihaly Nemeth-Csoka and Theo Reichel. These collaborations have fostered an environment of innovation and creativity, leading to the development of groundbreaking technologies.

Conclusion

Stefan Künzel's contributions to electrical engineering through his patents and work at Siemens have significantly advanced the field. His innovative solutions for drive control and motor compensation continue to influence the industry positively.

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