Average Co-Inventor Count = 3.83
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. Unicharm Corporation (3 from 1,645 patents)
3 patents:
1. 12295346 - Animal toilet
2. 11684034 - Animal litter box
3. D897056 - Pet toilet