Average Co-Inventor Count = 3.00
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. Imperial Chemical Industries Limited (2 from 3,840 patents)
2 patents:
1. 4092323 - Hydrazine derivatives of pyridyl-ketones
2. 4046841 - Phosphonates containing protected ketone group