Average Co-Inventor Count = 2.00
ph-index = 2
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. Beecham Group Plc (2 from 855 patents)
2 patents:
1. 4786643 - Treatment of migraine, cluster headaches and trigeminal neuralgia
2. 4725603 - Novel treatment