Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4372391 | Screw operated emergency relief and safety valve | Burchus Q. Barrington, Gerald D. Jackson | 1983-02-08 |
| 4372392 | Full opening emergency relief and safety valve | Burchus Q. Barrington | 1983-02-08 |