Average Co-Inventor Count = 13.00
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 National Offshore Oil Corporation (1 from 29 patents)
2. Cotec, Inc (1 from 3 patents)
3. Offshore Oil Engineering Co., Ltd. (1 from 2 patents)
1 patent:
1. 10295083 - Real-time analysis system for operation of working ship based on ship attitude measurement