Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4349072 | Method and apparatus for conducting logging or perforating operations in a borehole | Joachim Hoppe | 1982-09-14 |
| 4337969 | Extension member for well-logging operations | Joachim Hoppe | 1982-07-06 |