Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5704391 | Gravity-operated gas shut-off valve | John B. McGowan, Jr. | 1998-01-06 |
| 5551476 | Balanced-flow gas safety valve | — | 1996-09-03 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5704391 | Gravity-operated gas shut-off valve | John B. McGowan, Jr. | 1998-01-06 |
| 5551476 | Balanced-flow gas safety valve | — | 1996-09-03 |