Average Co-Inventor Count = 1.60
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. Kabushiki Kaisha Kobe Seiko Sho (1 from 1,100 patents)
2. Agency of Industrial Science and Technology (1 from 1,037 patents)
2 patents:
1. 6558441 - Process of upgrading low rank coal
2. 4966978 - Process for separating indole in refined form