Average Co-Inventor Count = 4.22
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. Ge Oil Gas Pressure Control LP (3 from 81 patents)
2. Vetco Gray Inc. (2 from 452 patents)
5 patents:
1. 10371281 - Hybrid manual and hydraulic override
2. 9500294 - Hybrid manual and hydraulic actuator override
3. 9347585 - Dual seal fire safe stem packing orientation
4. 8985552 - Lock assembly for hydraulic fracing valve
5. 8936098 - System and method for remediating a wellbore annulus