Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6021577 | Borehole surveying | David John Kerridge | 2000-02-08 |
| 5806194 | Method for conducting moving or rolling check shot for correcting borehole azimuth surveys | Paul F. Rodney, Anne Holmes | 1998-09-15 |