1. Schering Aktiengesellschaft (14 from 1,384 patents)

2. Institut Fur Diagnostikforschung Gmbh (3 from 6 patents)

3. Other (2 from 832,680 patents)

4. University of Toledo (1 from 359 patents)

5. Meito Sangyo Kabushiki Kaisha (1 from 23 patents)

6. Shering Ag (1 from 7 patents)

7. Der Freien Universitat Berline (1 from 1 patent)

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4. 6517813 - Device and process for separating magnetic materials from pharmaceutical preparations, their starting or intermediate products, as well as agents that are produced with the aid of said device

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15. 6048515 - Iron-containing nanoparticles with double coating and their use in