Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5072388 | Lined casing inspection method | Terence P. O'Sullivan | 1991-12-10 |
| 5069485 | Brittle lined pipe connector | Stephen Pye, Gerald M. Hamblin, Jose M. Perez, William E. Amend, John D. Bush +2 more | 1991-12-03 |