Average Co-Inventor Count = 1.43
ph-index = 5
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. Cameron Iron Works, Inc. (6 from 118 patents)
6 patents:
1. 4682559 - Gas driven anchor and launching system therefor
2. 4541606 - Ram-type blowout preventer
3. 4381868 - Pressure-actuated wellhead sealing assembly
4. 4227543 - Blowout preventer
5. 4214600 - Valve
6. 4132265 - Pipe shearing ram assembly for blowout preventer