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. Jiangsu Xcmg Construction Machinery Research Institute Ltd. (2 from 44 patents)
2. Xcmg Foundation Construction Machinery Co., Ltd (1 from 2 patents)
2 patents:
1. D1009944 - Rotary drilling rig
2. D943640 - Horizontal directional drill