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. Norton Company (2 from 425 patents)
2 patents:
1. 5203886 - High porosity vitrified bonded grinding wheels
2. 5104424 - Abrasive article