Average Co-Inventor Count = 11.00
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. China Railway No. 2 Engineering Group Co. Ltd. (1 from 2 patents)
2. Xinyun Engineering Company of China Railway No. 2 Engineering Group, Co., Ltd. (1 from 1 patent)
1 patent:
1. 11391004 - Construction method for upright lifting of large-tonnage box girder to bridge, and erection method for large-tonnage box girder