Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7011109 | Drag ball valve | Duc Thanh Tran, Raymond R. Newton, Paul Smirl, Roger Bey | 2006-03-14 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7011109 | Drag ball valve | Duc Thanh Tran, Raymond R. Newton, Paul Smirl, Roger Bey | 2006-03-14 |