Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6079509 | Pipe die method and apparatus | William Livingston | 2000-06-27 |
| 5971086 | Pipe gripping die | William Livingston | 1999-10-26 |
| 5857476 | System for cleaning threaded and unthreaded portions of tubular members | Pat Cummins | 1999-01-12 |
| 5653819 | Method for cleaning threaded portions of tubular members | Pat Cummins | 1997-08-05 |
| 5372154 | System for cleaning threaded portions of tubular members | Pat Cummins | 1994-12-13 |