1. Hoechst Aktiengesellschaft (23 from 6,662 patents)

2. Sanofi-a Ventis Deutschland Gmbh (4 from 1,829 patents)

3. Aventis Research & Technologies Gmbh & Co Kg (3 from 57 patents)

4. Hoechst Research & Technology Deutschland Gmbh & Co. Kg (1 from 12 patents)

5. Hoechst Reasearch & Technology Deutschland Gmbh & Co. Kg (1 from 1 patent)

6. Aventis Research & Technologies Deutschland Gmbh & Co. Kg (1 from 1 patent)

7. Hoescht Research & Technology Deutchland Gmbh & Co. (1 from 1 patent)

8. Aventis Reseach & Technologies Gmbh & Co. Kg (1 from 1 patent)

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