Average Co-Inventor Count = 7.11
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. Dril-quip, Inc. (3 from 170 patents)
3 patents:
1. 12084937 - Barrier arrangement in wellhead assembly
2. 11773678 - Barrier arrangement in wellhead assembly
3. 11542778 - Barrier arrangement in wellhead assembly