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Frankfurt-am-Main, Germany

Degussa-Huls Aktiengellschaft

USPTO Granted Patents = 1

Forward Citations = 23

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4 inventors (with patents filed for the assignee):

Ralf Karch (1 out of 51 patents)

Ralf Zuber (1 out of 16 patents)

Knut Fehl (1 out of 9 patents)

4. Karl-Anton Starz (1 out of 20 patents)

1 patent: Sort by Forward Citations

1. 6156449 - Catalyst layer for polymer electrolyte fuel cells (2000-12-05),

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USPTO Data Jan 1 1976 - Dec 30 2025

1 Patents

#225 in Frankfurt-am-Main

#15,109 in Germany

Frankfurt-am-Main, Germany

Degussa-Huls Aktiengellschaft

Forward Citations = 23

4 inventors:

Ralf Karch (1 out of 51 patents)

Ralf Zuber (1 out of 16 patents)

Knut Fehl (1 out of 9 patents)

4. Karl-Anton Starz (1 out of 20 patents)

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