Average Co-Inventor Count = 1.80
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. The Red Baron (oil Tools Rental) Limited (2 from 4 patents)
2. Other (1 from 832,812 patents)
3 patents:
1. 5531280 - Drill string anchor
2. 5261498 - Drill string component
3. 5020599 - Drilling tool