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. Ohio Central Steel Company (2 from 5 patents)
2 patents:
1. 7121487 - Screening apparatus with hammermill
2. 6698594 - Screening machine