Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884247 | Method of processing geophysical data to compensate for earth filter attenuation | Mohamed T. Hadidi, Andrejs Jurkevics | 1989-11-28 |
| 4853903 | Method and apparatus for removing sinusoidal noise from seismic data | Thomas E. Shirley, Paul Griffith | 1989-08-01 |