Average Co-Inventor Count = 2.25
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. Imperial Chemical Industries Limited (2 from 3,840 patents)
2. United Utilites Plc (1 from 2 patents)
3 patents:
1. 5693740 - Aromatic polysulphones
2. 4777300 - Aromatic ketone
3. 4612399 - Purification of 4-fluoro-4'-hydroxybenzophenone