Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4899321 | Method and apparatus for determining the source signature of land vibrators | — | 1990-02-06 |
| 4893694 | VSP-based method and apparatus for tieing seismic data shot using different types of seismic sources | Richard T. Houck | 1990-01-16 |