Average Co-Inventor Count = 2.35
ph-index = 4
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Byk Gulden Lomberg Chemische Fabrik Gmbh (2 from 136 patents)
2. Altana Pharma Ag (2 from 84 patents)
3. Nycomed Gmbh (2 from 63 patents)
4. Takeda Gmbh (1 from 47 patents)
7 patents:
1. 8648100 - Roflumilast for the treatment of pulmonary hypertension
2. 8278300 - Use for PDE5 inhibitors
3. 7666872 - Use for PDE5 inhibitors
4. 7056936 - Synergistic combination
5. 6624181 - Synergistic combination
6. 6333354 - Synergistic combination of PDE inhibitors and adenylate cyclase agonists or guanyl cyclyse agonists
7. 5449676 - Pyridazines