Average Co-Inventor Count = 3.60
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. Kyowa Hakko Kogyo Co., Ltd. (3 from 730 patents)
3 patents:
1. 6294151 - Isotopic urea tablets
2. 4961925 - Hair preparation composition
3. 4582801 - Process for producing glutathione