Average Co-Inventor Count = 4.50
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. Schlumberger Technology Corporation (3 from 10,170 patents)
3 patents:
1. 5434507 - Method and apparatus for electromagnetic logging with two dimensional
2. 4857852 - Induction well logging apparatus with transformer coupled phase
3. 4766384 - Well logging apparatus for determining dip, azimuth, and invaded zone