Average Co-Inventor Count = 2.00
ph-index = 3
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. Johnson Matthey Public Limited Company (3 from 834 patents)
3 patents:
1. 6365742 - Preparation of opiates, intermediates and uses of salts
2. 6235906 - Preparation of opiates
3. 6090943 - Preparation of opiates, intermediates and uses of salts