% Expired Patents = 100.0

Forward Citations = 1

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3 inventors (with patents filed for the assignee):

Markus Hansch (1 out of 36 patents)

Sophie Maitro-Vogel (1 out of 15 patents)

Roman Benedikt Raether (1 out of 16 patents)

1 patent: Sort by Forward Citations

1. 9428432 - Derivatives of tris(2-hydroxyphenyl)methanes, preparation thereof and use thereof for mineral oil production (2016-08-30),

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USPTO Data Jan 1 1976 - Oct 13 2026

1 Patents

#41 in Kassel

#15,369 in Germany

Kassel, Germany

Basf Wintershall Holding Gmbh

Forward Citations = 1

3 inventors:

Markus Hansch (1 out of 36 patents)

Sophie Maitro-Vogel (1 out of 15 patents)

Roman Benedikt Raether (1 out of 16 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Basf Wintershall Holding Gmbh. Retrieved from https://idiyas.com/company/basf-wintershall-holding

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]