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For the Inventor, By the Inventor

Kappelrodeck, Germany

Stefan Koch

This inventor holds 24 USPTO granted patents and 1 published patent application and 10 EPO patents, primarily in Electric Vehicle Technology. Top assignee: Robert Bosch. Active years: 1993-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Stefan Koch. Retrieved from https://idiyas.com/inventor/stefan-koch

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

Calculating rank
USPTO Granted Patents = 24 

% Patents Active = 62.5

 

Average Co-Inventor Count = 2.2

ph-index = 6

Forward Citations = 87(Granted Patents)


Location History:

  • Ottersweier, DE (1993 - 2002)
  • Achern, DE (2000 - 2005)
  • Kappelrodeck, DE (2006 - 2017)

Company Filing History:

goldMedal24 out of 30,245 
 
Robert Bosch
 patents

Years Active: 1993-2026

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Areas of Expertise:
Electric Vehicles
Voltage Converters
Control Units
Fan Systems
Direct Current Motors
Power Semiconductors
Cooling Systems
Motor Control
Wiper Arrangements
Multi-Processor Systems
Inductive Loads
Overload Detection
24 patents (USPTO):Explore Patents
1. 12627083 - Connection assembly, in particular for use in electric vehicles or hybrid vehicles (2026-05-12),
2. 9660510 - Voltage converter for a motor vehicle (2017-05-23),
3. 9467059 - Activation apparatus and method for activating a direct voltage converter (2016-10-11),
4. 9401598 - Control unit for a motor vehicle (2016-07-26),
5. 9178429 - Actuation apparatus and actuation method for an active snubber circuit for a DC-DC converter (2015-11-03),
6. 8628310 - Fan system having improved availability and method for its operation (2014-01-14),
7. 7656107 - Control circuit for an arrangement having at least two direct current motors that are connectable in parallel to a direct voltage system (2010-02-02),
8. 7598687 - Method and control unit for controlling fan motors (2009-10-06),
9. 7595605 - Method and control circuit for determining an operating state when controlling a fan motor (2009-09-29),
10. 7166976 - Method and control circuit for reducing line-bound disturbances in a pulse-width modulated control of an electric motor (2007-01-23),
11. 7122984 - Method for identifying an overload current of an electric drive (2006-10-17),
12. 7038407 - Circuit arrangement and method for operation of an electric motor in a DC supply network (2006-05-02),
13. 6888327 - System for protecting a power semiconductor output stage that switches an inductive load (2005-05-03),
14. 6710558 - Electronically commutable motor, in particular, for a liquid pump (2004-03-23),
15. 6553499 - Low power circuit for waking from a sleep mode by using a remote power-on signal (2003-04-22),

Title: Innovations of Stefan Koch in Voltage Conversion Technology

Introduction

Stefan Koch, a prolific inventor based in Kappelrodeck, Germany, has made significant contributions to the field of electrical engineering with a focus on voltage conversion technology. With a remarkable portfolio of 23 patents, his inventions play a crucial role in improving efficiency and performance in motor vehicles and related applications.

Latest Patents

Stefan Koch's recent innovations include a novel voltage converter designed specifically for motor vehicles. This invention features a transformer and a power output stage comprising at least two semiconductor switches connected to the primary winding of the transformer. It incorporates a driver stage that utilizes a control signal to actuate the semiconductor switches, thereby generating an alternating voltage efficiently.

Another noteworthy patent is the activation apparatus for a galvanically decoupled direct voltage converter with a synchronous rectifier. This apparatus includes a signal generating device for control signals, a comparator for detecting and comparing output current, and a pulse width modulation device that creates activation signals based on these parameters. This invention effectively enhances the responsiveness and efficiency of direct voltage converters.

Career Highlights

Stefan Koch has honed his expertise as an inventor while working at Robert Bosch GmbH, a leading company in automotive technology and engineering solutions. His role allows him to explore innovative solutions that significantly impact motor vehicle efficiency and functionality.

Collaborations

In his career, Stefan has collaborated with fellow inventors Jian Tian and Ralf-Peter Bergmann, combining their expertise to drive advancements in voltage conversion and related technologies. Their teamwork exemplifies the collaborative spirit that fuels innovation at Bosch.

Conclusion

Stefan Koch's contributions to the field of voltage conversion through his inventive patents highlight his role as a significant player in automotive technology. His ongoing work continues to push the boundaries of electrical engineering, promising further advancements in vehicle efficiency and performance.

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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