Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864545 | Process for the detection of heterogeneities and/or for the determination of petrophysical characteristics of geological strata of a medium to be explored | Claude Gras, Patricia Arditty | 1989-09-05 |
| 4833658 | Method of seismic prospecting with very high resolution in horizontal boreholes | — | 1989-05-23 |
| 4811814 | Measuring device for a seismic profile within a well-bore | Pierre Gros | 1989-03-14 |