Average Co-Inventor Count = 2.00
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. Elkem Metals Company (2 from 27 patents)
2 patents:
1. 4749549 - Gray cast iron inoculant
2. 4666516 - Gray cast iron inoculant