1. Aeterna Zentaris Gmbh (9 from 36 patents)

2. Arzneimittelwerk Dresden Gmbh (5 from 39 patents)

3. Elbion Ag (4 from 9 patents)

4. Zentaris Gmbh (2 from 22 patents)

5. Zentaris Ag (2 from 20 patents)

6. Biotie Therapies Corporation (1 from 28 patents)

7. Ae Zentaris Gmbh (1 from 1 patent)

8. Æterna Zentaris Gmbh (2 patents)

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