Average Co-Inventor Count = 2.00
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. Schlumberger Technology Corporation (1 from 10,180 patents)
2. Smith International, Inc. (1 from 1,426 patents)
3. Mic (515 patents)
4. Services Petroliers Schlumberger (0 patent)
5. Schlumberger Holdings Limited (0 patent)
2 patents:
1. 11286734 - Fine control of casing pressure
2. 9932787 - Systems and methods for managed pressured drilling