Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5217789 | Refractory supports | Robert Chadwick, Henry R. Meumann | 1993-06-08 |
| 4618079 | Refractory, heat-insulating slabs | Andrew Barnes, William MacFarlane, Stephen T. Pheasant | 1986-10-21 |