Esslingen, Germany

Juergen Frey

This inventor holds 2 USPTO granted patents. Top assignee: Daimler Chrysler Ag. Active years: 2001-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Juergen Frey. Retrieved from https://idiyas.com/inventor/juergen-frey

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

Calculating rank

% Patents Active = 50.0

Average Co-Inventor Count = 1.5

ph-index = 2

Forward Citations = 61(Granted Patents)


Company Filing History:


Years Active: 2001-2003

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2 patents (USPTO):Explore Patents

Title: Juergen Frey: Automotive Engineering Inventor

Introduction

Juergen Frey is an inventor associated with Esslingen, Germany, and DaimlerChrysler AG, now known as Mercedes-Benz Group AG. His patent work focuses on vehicle drive systems and fuel delivery for spark-ignition engines. The supplied information lists 2 patents.

Latest Patents

Frey’s listed patents address two areas of automotive engineering:

- **Motor vehicle drive.** This invention describes a drive system combining an internal-combustion engine with at least one electric machine. A clutch device can connect the electric machine to the engine, while an auxiliary device can be connected to the electric machine.

- **Fuel feed system for a spark-ignition internal combustion engine and a method of operating such an internal combustion engine.** This invention describes a system with a direct-injection valve that supplies fuel to the combustion chamber and an additional valve that supplies fuel through the engine’s intake passage under certain operating conditions. The direct-injection valve is designed for fuel volumes below those needed for full-power operation.

Career Highlights

The available information connects Frey’s patent activity with DaimlerChrysler AG and identifies Esslingen as his location. His listed inventions concern both engine and electric-machine integration and fuel-injection strategies.

Collaborations

Stephan Kraemer and Guenter Karl are identified as Frey’s coworkers. The supplied information does not specify their roles in the listed patents.

Conclusion

Juergen Frey’s listed patents reflect work on automotive drive configurations and fuel-feed systems, linking his inventive activity to key areas of vehicle engineering.

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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