Average Co-Inventor Count = 3.43
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. Toshiba Ceramics Co., Ltd. (2 from 189 patents)
2 patents:
1. 4948736 - Continuous microorganism cultivating apparatus
2. 4861471 - Activated sludge treatment apparatus