Average Co-Inventor Count = 5.46
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. Senju Pharmaceutical Co., Ltd. (2 from 228 patents)
2 patents:
1. 6358515 - Hydroquinone derivatives
2. 6310067 - Urocanic acid derivatives