Average Co-Inventor Count = 3.13
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. Ntn Corporation (3 from 2,462 patents)
3 patents:
1. 7988366 - Retainer for rolling bearing and rolling bearing
2. 5725448 - Idler pulley
3. 5375933 - Rolling contact bearing protected against electrolytic corrosion