Average Co-Inventor Count = 2.00
ph-index = 1
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 (1 from 1,113 patents)
1 patent:
1. 4888053 - Chloride leaching of iron-based, heavy metal-containing sludges