Average Co-Inventor Count = 3.43
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. Tokiwa Phytochemical Co., Ltd. (2 from 8 patents)
2. Kenko Corporation (1 from 1 patent)
2 patents:
1. 8101795 - Process for preparing high purity corosolic acid and high purity ursolic acid
2. 6737085 - Apocynum venetum extract for use as antidepressant