Average Co-Inventor Count = 2.90
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 (3 from 3,600 patents)
3 patents:
1. 7964222 - Aqueous external preparation for scalp
2. 5980924 - Skin cleansing sheet
3. 5756437 - Aqueous gel cleanser comprising fatty acid ester of peg as nonionic