Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5825143 | Method and apparatus for slowing back spin of a rod string of a progressing cavity pump powered by an electric motor when power is lost | — | 1998-10-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5825143 | Method and apparatus for slowing back spin of a rod string of a progressing cavity pump powered by an electric motor when power is lost | — | 1998-10-20 |