Average Co-Inventor Count = 5.09
ph-index = 1
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. Dril-quip, Inc. (2 from 170 patents)
2 patents:
1. 9228397 - Systems and methods for riser coupling
2. 9206654 - Systems and methods for riser coupling