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. Kao Corporation (2 from 3,603 patents)
2 patents:
1. D1106331 - Color card
2. 12153979 - Card for identifying a tone of a sample of human skin