Average Co-Inventor Count = 3.20
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. Sumitomo Chemical Company, Limited (4 from 6,892 patents)
4 patents:
1. 4398051 - Production of tertiary olefins
2. 4082767 - Production of alpha-amino acids
3. 4071569 - Process for producing phenols
4. 3980662 - Process for preparing acid amides