Average Co-Inventor Count = 2.00
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. Westerngeco L.l.p. (1 from 691 patents)
1 patent:
1. 6540034 - Portable seismic shothole drilling system