Average Co-Inventor Count = 2.59
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 (9 from 10,180 patents)
9 patents:
1. 12460499 - Electric annular blowout preventer with radial compression of packer
2. 12454872 - Electric blowout preventer bonnet using linear actuated roller screws
3. 12428924 - Electrically actuated annular system and method for use in blowout preventer
4. 12428955 - Well equipment system framework
5. 12404736 - Electrically-actuated blow-out preventer
6. 12398604 - Automatically switching between managed pressure drilling and well control operations
7. 12385348 - Annular closing system and method for use in blowout preventer
8. 12152459 - Electrically actuated annular system and method for use in blowout preventer
9. 11952856 - Electric blowout preventer bonnet using linear actuated roller screws