Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6728165 | Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors | Craig W. Hodgson, Donald A. Frederick, William Knaack | 2004-04-27 |
| 6724319 | Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors | William Knaack | 2004-04-20 |