Average Co-Inventor Count = 2.67
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. Other (1 from 832,891 patents)
2. National Oilwell Varco, L.p. (1 from 572 patents)
2 patents:
1. 12140027 - Particle impact drill bits and associated methods
2. 12109984 - Car wash tunnel entrance safety system