Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7260021 | Method of harmonic noise attenuation in correlated sweep data | — | 2007-08-21 |
| 6891776 | Vibrator sweep shaping method | — | 2005-05-10 |
| 6865488 | Method of using cascaded sweeps for source coding and harmonic cancellation | Frederick J. Barr, David Lee Nyland, Gary A. Sitton | 2005-03-08 |
| 6842701 | Method of noise removal for cascaded sweep data | Frederick J. Barr | 2005-01-11 |
| 6687619 | Method of using cascaded sweeps for source coding and harmonic cancellation | Frederick J. Barr, David Lee Nyland, Gary A. Sitton | 2004-02-03 |
| 6381544 | Deterministic cancellation of air-coupled noise produced by surface seimic sources | John J. Sallas | 2002-04-30 |