Average Co-Inventor Count = 3.00
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. Shionogi Company Limited (3 from 1,001 patents)
2. Nisshin Chemical Co., Ltd. (2 from 2 patents)
3. Nisshin Chemical Industry Co., Ltd. (1 from 15 patents)
3 patents:
1. 5063048 - UV light-absorbing skin-protecting composition
2. 4914140 - Acrylic copolymer and skin protective
3. 4874830 - Acrylic copolymer and skin protective