Average Co-Inventor Count = 2.00
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. Union Oil Company of California (2 from 1,113 patents)
2 patents:
1. 4940533 - Hydroprocessing hydrocarbon oils
2. 4879265 - Hydroprocessing catalyst and phosphorous and citric acid containing