For the Inventor, By the Inventor

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Frankfurt-am-Main, Germany

Hoechst Aktiengesellchaft

USPTO Granted Patents = 2

Forward Citations = 7

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6 inventors (with patents filed for the assignee):

Walter Freyer (1 out of 4 patents)

Detlef Kampmann (1 out of 11 patents)

Gero Heymer (1 out of 59 patents)

4. Reinhard Gradl (1 out of 33 patents)

5. Karl Bayer (1 out of 1 patent)

6. Gunther R Schimmel (1 out of 47 patents)

2 patents: Sort by Forward Citations

1. 5433831 - Process for the preparation of dichloroacetyl chloride (1995-07-18),

2. 4466948 - Process for removing heavy metal ions and arsenic from wet-processed (1984-08-21),

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USPTO Data Jan 1 1976 - Jan 6 2026

2 Patents

#165 in Frankfurt-am-Main

#10,514 in Germany

Frankfurt-am-Main, Germany

Hoechst Aktiengesellchaft

Forward Citations = 7

6 inventors:

Walter Freyer (1 out of 4 patents)

Detlef Kampmann (1 out of 11 patents)

Gero Heymer (1 out of 59 patents)

4. Reinhard Gradl (1 out of 33 patents)

5. Karl Bayer (1 out of 1 patent)

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