Average Co-Inventor Count = 4.00
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. National Oilwell Varco, L.p. (1 from 572 patents)
2. Grant Prideco, Inc. (1 from 74 patents)
2 patents:
1. 12076798 - Tools and methods for refacing tubular ends forming a threaded connection
2. 11400525 - Tools and methods for refacing tubular ends forming a threaded connection