Average Co-Inventor Count = 3.00
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. Tsinghua University (3 from 4,304 patents)
3 patents:
1. 9776534 - Car safety seat
2. 9701224 - Car safety seat
3. 9676302 - Adjustable footrest assembly and car safety seat