Average Co-Inventor Count = 1.50
ph-index = 1
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. Imperial Chemical Industries Limited (1 from 3,840 patents)
2. Zeneca Limited (1 from 854 patents)
3. Ici Pharma (1 from 80 patents)
2 patents:
1. 5538962 - Antibiotic penem compounds
2. 5008259 - Cephalosporin compounds