Average Co-Inventor Count = 3.91
ph-index = 3
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. Smith International, Inc. (4 from 1,426 patents)
2. Schlumberger Technology Corporation (2 from 10,170 patents)
6 patents:
1. 12159391 - System for characterizing oilfield tools
2. 11494887 - System for characterizing oilfield tools
3. 7469618 - Maintaining carburized case during neutral to the core heat treatment processes
4. 7387178 - Self relieving seal
5. 7201241 - Self relieving seal
6. 6976548 - Self relieving seal