Average Co-Inventor Count = 4.36
ph-index = 4
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 (4 from 10,218 patents)
2. Nolan C. Lerche (0 patent)
3. James E. Brooks (0 patent)
4. Simon L. Farrant (0 patent)
5. Edward H. Rogers (0 patent)
4 patents:
1. 9464508 - Interactive and/or secure activation of a tool
2. 7520323 - Interactive and/or secure activation of a tool
3. 7383882 - Interactive and/or secure activation of a tool
4. 6938689 - Communicating with a tool