Average Co-Inventor Count = 3.00
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. Driltech, L.l.c. (2 from 5 patents)
2 patents:
1. D244190 - Well drilling vehicle
2. 3980143 - Holding wrench for drill strings