Average Co-Inventor Count = 3.00
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. Vam Drilling France (1 from 7 patents)
1 patent:
1. 9217298 - Holding device insertable into the central bore of a tubular drill string component, and corresponding tubular drill string component