Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6478107 | Axially extended downhole seismic source | James R. Birchak, Carl A. Robbins, Eugene J. Linyaev, David J. Young | 2002-11-12 |
| 6400646 | Method for compensating for remote clock offset | Vimal V. Shah, John W. Minear, James R. Birchak, Wallace R. Gardner, Carl A. Robbins | 2002-06-04 |