Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7665714 | Fail safe mechanism for valve using a cock and lock return spring | Steven Charles Stumbo, Doyle Kent Stewart | 2010-02-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7665714 | Fail safe mechanism for valve using a cock and lock return spring | Steven Charles Stumbo, Doyle Kent Stewart | 2010-02-23 |