Average Co-Inventor Count = 1.36
ph-index = 3
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. Abb Vetco Gray Incorporated (3 from 188 patents)
3 patents:
1. 6401827 - Tubing hanger running tool
2. 5655606 - Running tool for installing a wellhead load shoulder
3. 5332043 - Wellhead connector