Average Co-Inventor Count = 7.00
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. Zhengzhou University (1 from 34 patents)
2. Safekey Engineering Technology (Zhengzhou), Ltd. (1 from 18 patents)
1 patent:
1. 11618802 - Polymer expanding material used in infiltration or seepage watery environment and preparation method thereof