Average Co-Inventor Count = 5.00
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. Daicel Corporation (1 from 638 patents)
2. Katayama Chemical Works Co., Ltd. (1 from 15 patents)
1 patent:
1. 4071445 - Method and apparatus for treating waste water on ships