Average Co-Inventor Count = 2.40
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. Halliburton Energy Services, Inc. (3 from 11,817 patents)
3 patents:
1. 12467336 - Tubing pressure insensitive subsurface safety valve
2. 11215027 - Safety valve with a sleeved piston receptacle
3. 10655431 - Bypass diverter sub for subsurface safety valves