Average Co-Inventor Count = 4.00
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. Research Development Corporation of Japan (2 from 256 patents)
2 patents:
1. 5869739 - Method for producing formic acid or its derivatives
2. 5763662 - Method for producing formic acid of its derivatives