Average Co-Inventor Count = 4.44
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. Kao Corporation (2 from 3,600 patents)
2 patents:
1. 4937008 - Concentrated softening agent for use in clothings: quaternary ammonium
2. 4885102 - Cloth-softening liquid composition containing quaternary ammonium