Issued Patents 2018
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9970569 | Closure member position indicator system for use in a blowout preventer | Johnnie E. Kotrla | 2018-05-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9970569 | Closure member position indicator system for use in a blowout preventer | Johnnie E. Kotrla | 2018-05-15 |