Average Co-Inventor Count = 3.00
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. United States Gypsum Company (2 from 722 patents)
2 patents:
1. 4552683 - Gas desulfurization reactant
2. 4424197 - Gas desulfurization