Average Co-Inventor Count = 1.75
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. Other (2 from 833,002 patents)
2 patents:
1. 6068758 - Process for hydrocracking heavy oil
2. 5338322 - Process for converting heavy oil deposited on coal to distillable oil in