Average Co-Inventor Count = 3.83
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. Nippon Oil Company (2 from 690 patents)
2. Research Association for Petroleum Alternative Development (1 from 1 patent)
3 patents:
1. 4670614 - Hydrocarbon conversion process
2. 4482450 - Process for catalytic reaction of heavy oils
3. 4359379 - Process for fluid catalytic cracking of distillation residual oils