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For the Inventor, By the Inventor

Essen, Germany

Hagen Friedrich

This inventor holds 4 USPTO granted patents. Top assignee: Kiekert Ag. Active years: 1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hagen Friedrich. Retrieved from https://idiyas.com/inventor/hagen-friedrich

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

USPTO Granted Patents = 4

% Patents Active = 100.0

Average Co-Inventor Count = 1.5

ph-index = 4

Forward Citations = 31(Granted Patents)


Company Filing History:

goldMedal4 out of 512 
 
Kiekert Ag
 patents

Years Active: 1999

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4 patents (USPTO):Explore Patents
1. 5892443 - Vehicle door lock with a latch system and a locking system and (1999-04-06),
2. 5878610 - Motor vehicle door lock system (1999-03-09),
3. 5865049 - Hall-effect key-position sensor for motor-vehicle latch (1999-02-02),
4. 5862691 - Key-position sensor for motor-vehicle latch (1999-01-26),

Title: Innovations by Hagen Friedrich

Introduction

Hagen Friedrich is a notable inventor based in Essen, Germany. He has made significant contributions to the field of vehicle locking systems. With a total of 4 patents to his name, his work focuses on enhancing security and functionality in automotive technology.

Latest Patents

Friedrich's latest patents include a vehicle door lock with a latch system and a locking system. This innovative apparatus utilizes Hall-effect sensors to determine the position of elements within the latch or locking system. The invention allows for the generation of control signals based on the amplitude of the information signal current. This feature enables the detection of defects in the Hall-effect sensor and its associated circuitry in a simple and economical manner. Another significant patent is a motor vehicle door lock that incorporates a key-operated lock cylinder. This system signals antitheft and locking-and-unlocking positions through Hall effect chips, which are integrated with electronic circuitry for enhanced evaluation.

Career Highlights

Hagen Friedrich is currently employed at Kiekert AG, a company renowned for its expertise in automotive locking systems. His work at Kiekert AG has allowed him to develop innovative solutions that improve vehicle security and user experience.

Collaborations

Friedrich has collaborated with notable colleagues such as Andreas Siekierka and Thorsten Torkowski. Their teamwork has contributed to the advancement of technology in the automotive sector.

Conclusion

Hagen Friedrich's contributions to vehicle locking systems demonstrate his commitment to innovation and security in automotive technology. His patents reflect a deep understanding of the challenges in this field and offer practical solutions that enhance vehicle safety.

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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