Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6814141 | Method for improving oil recovery by delivering vibrational energy in a well fracture | Chun Huh, Philip Lee Wylie, Jr., Jung-gi Jane Shyeh | 2004-11-09 |
| 6672405 | Perforating gun assembly for use in multi-stage stimulation operations | Randy C. Tolman, David A. Kinison, Kris J. Nygaard, William A. Sorem, Timothy J. Hall | 2004-01-06 |