Average Co-Inventor Count = 3.33
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. Amoco Corporation (3 from 1,528 patents)
3 patents:
1. 5286371 - Process for producing needle coke
2. 5110449 - Oxygen addition to a coking zone and sludge addition with oxygen addition
3. 5041207 - Oxygen addition to a coking zone and sludge addition with oxygen addition