Average Co-Inventor Count = 2.40
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. 5055458 - Purine derivatives having antiviral activity
2. 4965270 - Purine derivatives