Average Co-Inventor Count = 2.00
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. Ishigaki Company Limited (2 from 29 patents)
2 patents:
1. 5846415 - Apparatus for regenerating filter clothes of filter press
2. 5843310 - Filter unit for filter press