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. Inco Limited (2 from 151 patents)
2 patents:
1. 5199515 - Dry pneumatic system for hard rock shaft drilling
2. 5125692 - Dry pneumatic system for hard rock shaft drilling