% Expired Patents = 100.0

Forward Citations = 5

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4 inventors (with patents filed for the assignee):

Ashraf Koka (1 out of 2 patents)

Alfred Graff (1 out of 10 patents)

Karsten Deegen (1 out of 1 patent)

4. Axel Heinz (1 out of 1 patent)

1 patent: Sort by Forward Citations

1. 9322805 - Leakage flux probe for non-destructive leakage flux-testing of bodies consisting of magnetisable material (2016-04-26),

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USPTO Data Jan 1 1976 - Oct 20 2026

1 Patents

#206 in Düsseldorf

#15,376 in Germany

Düsseldorf, Germany

Vallourec Deutshcland Gmbh

Forward Citations = 5

4 inventors:

Ashraf Koka (1 out of 2 patents)

Alfred Graff (1 out of 10 patents)

Karsten Deegen (1 out of 1 patent)

4. Axel Heinz (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Vallourec Deutshcland Gmbh. Retrieved from https://idiyas.com/company/vallourec-deutshcland

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]