Average Co-Inventor Count = 1.33
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. Imperial Chemical Industries Limited (3 from 3,840 patents)
2. Ici Pharma (3 from 80 patents)
3. Imperial Chemical Industries Plc, Ici Pharma (1 from 1 patent)
4 patents:
1. 5302603 - Heterocyclic cyclic ethers
2. 5219881 - Cyclic ether derivatives
3. 5196419 - Heterocyclic cyclic ethers
4. 5098932 - Cyclic ether derivatives