Average Co-Inventor Count = 9.00
ph-index = 1
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 (1 from 614 patents)
2. Chiyoda Corporation (1 from 167 patents)
1 patent:
1. 5055612 - Process for the preparation of naphthalene carboxylic acids