For the Inventor, By the Inventor

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Hamburg, Germany

Basf Farben

USPTO Granted Patents = 1

Forward Citations = 2

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6 inventors (with patents filed for the assignee):

Gunter Etzrodt (1 out of 3 patents)

Werner Ostertag (1 out of 37 patents)

Egon Liedek (1 out of 13 patents)

4. Helmut Knittel (1 out of 9 patents)

5. Henning Wienand (1 out of 9 patents)

6. Peter Dimroth (1 out of 9 patents)

1 patent: Sort by Forward Citations

1. 4530725 - Preparation of thermally stable lead chromate pigments (1985-07-23),

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USPTO Data Jan 1 1976 - Jan 6 2026

1 Patents

#334 in Hamburg

#15,120 in Germany

Hamburg, Germany

Basf Farben

Forward Citations = 2

6 inventors:

Gunter Etzrodt (1 out of 3 patents)

Werner Ostertag (1 out of 37 patents)

Egon Liedek (1 out of 13 patents)

4. Helmut Knittel (1 out of 9 patents)

5. Henning Wienand (1 out of 9 patents)

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