Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5333916 | External pipe coupling system with inflatable gasket | John W. Burkit | 1994-08-02 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5333916 | External pipe coupling system with inflatable gasket | John W. Burkit | 1994-08-02 |