Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6189768 | Process and apparatus for pressing an external sleeve onto a tube for enhancing weld design | David L. Lewis, Wallace G. Murray, Marvin Skiff | 2001-02-20 |
| 5538261 | Mechanical heat-exchange tube sealing system | Wallace G. Murray | 1996-07-23 |
| 4434840 | Expansion joint for reactor or heat exchanger | William J. O'Donnell, Ray G. Fasiczka | 1984-03-06 |