Average Co-Inventor Count = 3.75
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. Tongli Tyre Co., Ltd. (1 from 3 patents)
2. Sinopec Group, Shengli Petroleum Administration Transport Corporation (1 from 1 patent)
2 patents:
1. D867275 - Tire
2. 8047821 - Ring rack oil pumping machine