Average Co-Inventor Count = 8.00
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. Toyo Engineering Corporation (1 from 171 patents)
2. Nittetsu Mining Co., Ltd. (1 from 43 patents)
3. Sumitomo Corporation (1 from 22 patents)
1 patent:
1. 9255011 - Method for producing lithium carbonate