Average Co-Inventor Count = 4.32
ph-index = 3
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. Kao Corporation (3 from 3,600 patents)
3 patents:
1. 6451000 - Disposable diaper
2. 5282983 - Fabric softener composition and ammonium salt
3. 5242607 - Concentrated softener