Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7954509 | Check valves with hinge shafts retained by welding | Ralph L. Dulay, Amer Aizaz, Michael Kolic, David B. Tornquist | 2011-06-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7954509 | Check valves with hinge shafts retained by welding | Ralph L. Dulay, Amer Aizaz, Michael Kolic, David B. Tornquist | 2011-06-07 |