Average Co-Inventor Count = 4.00
ph-index = 3
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. Nitto-denko Corporation (3 from 3,871 patents)
3 patents:
1. D605274 - Air filter
2. D605275 - Air filter
3. D593189 - Air filter