Average Co-Inventor Count = 7.00
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. Nkk Corporation (2 from 614 patents)
2. Chiyoda Corporation (2 from 168 patents)
2 patents:
1. 5316821 - Partition plate for multiple-stage adsorption separator
2. 5200075 - Separator