Average Co-Inventor Count = 5.83
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. Schlumberger Technology Corporation (2 from 10,181 patents)
2. Services Petroliers Schlumberger (0 patent)
2 patents:
1. 12066122 - Flow control valve with erosion protection
2. 11905790 - Safety valve with electrical actuators