Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7189970 | Imaging of fugitive gas leaks | James Ivor Symons | 2007-03-13 |
| 4759759 | Bubble heart valve | David K. Walker, Richard T. Brownlee, Denton E. Hewgill, Lawrence N. Scotten | 1988-07-26 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7189970 | Imaging of fugitive gas leaks | James Ivor Symons | 2007-03-13 |
| 4759759 | Bubble heart valve | David K. Walker, Richard T. Brownlee, Denton E. Hewgill, Lawrence N. Scotten | 1988-07-26 |