Average Co-Inventor Count = 3.00
ph-index = 2
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. Institut Francais Du Pe'trole (2 from 2,424 patents)
2 patents:
1. 5663929 - Drilling signal transmission method and system
2. 5550788 - Method and system of analysis of the behavior of a drill string