Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4662436 | Tool for washing over, cutting and retrieving a portion of a pipe within a well bore | Billy L. Haughton | 1987-05-05 |
| 4619556 | Method and apparatus for severing a tubular member | — | 1986-10-28 |