Average Co-Inventor Count = 1.67
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. Shell Oil Comapny (2 from 7,646 patents)
2 patents:
1. 5171425 - Process for upgrading a sulfur-containing feedstock
2. 5143596 - Process for upgrading a sulphur-containing feedstock