Average Co-Inventor Count = 4.00
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. Dreco Energy Services Ulc (1 from 30 patents)
2. Nov Canada Ulc (9 patents)
1 patent:
1. 11035198 - Multifunction blowout preventer