Average Co-Inventor Count = 5.09
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. Schlumberger Technology Corporation (2 from 10,180 patents)
2. Services Petroliers Schlumberger (0 patent)
3. Schlumberger Holdings Limited (0 patent)
4. Prad Research and Development Limited (0 patent)
2 patents:
1. 7644907 - Drum for a well access line
2. 7438280 - High load flange profile for a wireline drum