Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6666271 | Curved flapper and seat for a subsurface saftey valve | Thomas M. Deaton | 2003-12-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6666271 | Curved flapper and seat for a subsurface saftey valve | Thomas M. Deaton | 2003-12-23 |