Average Co-Inventor Count = 4.21
ph-index = 4
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. Varco I/p, Inc. (3 from 191 patents)
2. Tuboscope I/p, Inc. (1 from 36 patents)
4 patents:
1. 7018326 - Centrifuge with impellers and beach feed
2. 6790169 - Centrifuge with feed tube adapter
3. 6780147 - Centrifuge with open conveyor having an accelerating impeller and flow enhancer
4. 6605029 - Centrifuge with open conveyor and methods of use