Average Co-Inventor Count = 6.00
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. Taisei Corporation (1 from 80 patents)
2. Kondoh Industries, Ltd. (1 from 6 patents)
3. Cambridge Filter Japan, Ltd. (1 from 5 patents)
1 patent:
1. 6929672 - Filter medium for air filter and process for producing the same