Average Co-Inventor Count = 3.43
ph-index = 1
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. Alibaba.com Limited (2 from 4 patents)
2 patents:
1. 9208471 - Matching users with similar interests
2. 9116997 - Presenting user preference activities