% Expired Patents = 33.3

Forward Citations = 7

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6 inventors (with patents filed for the assignee):

Manfred Zengerle (1 out of 5 patents)

Robert P Holuka (1 out of 1 patent)

Lars Buhrkall (1 out of 1 patent)

4. Dieter Wurgler (1 out of 1 patent)

5. Peter Terwiesch (1 out of 1 patent)

6. Christian Mangold (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 6557676 - Innovia vehicle lock-on device (2003-05-06),

2. 6321170 - Method for interference current and state monitoring in rail vehicles (2001-11-20),

3. 6213327 - Container for a rail vehicle for the installation of electronic and electrical equipment (2001-04-10),

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

3 Patents

#366 in Pittsburgh, PA

#2,682 in Pennsylvania

#73,860 in US

Pittsburgh, PA, United States of America

Daimlerchrysler Rail Systems (Technology)

Forward Citations = 7

6 inventors:

Manfred Zengerle (1 out of 5 patents)

Robert P Holuka (1 out of 1 patent)

Lars Buhrkall (1 out of 1 patent)

4. Dieter Wurgler (1 out of 1 patent)

5. Peter Terwiesch (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Daimlerchrysler Rail Systems (Technology). Retrieved from https://idiyas.com/company/daimlerchrysler-rail-systems-technology

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

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]