Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6019181 | Core drilling latch assembly | Donald W. Raymond | 2000-02-01 |
| 5992543 | Core drilling latch assembly | Donald W. Raymond | 1999-11-30 |
| 5799742 | Core drilling latch assembly | Donald W. Raymond | 1998-09-01 |
| 4466497 | Wireline core barrel | Alexander F. Soinski, William R. Soinski | 1984-08-21 |