Average Co-Inventor Count = 2.67
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. Hydril USA Manufacturing LLC (2 from 70 patents)
2 patents:
1. 8505870 - Shear blade geometry and method
2. 8464797 - Subsea control module with removable section and method