Average Co-Inventor Count = 3.43
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 patents:
1. 7128152 - Method and apparatus to selectively reduce wellbore pressure during pumping operations
2. 7128160 - Method and apparatus to selectively reduce wellbore pressure during pumping operations