Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886121 | Universal flexbowl wellhead and well completion method | Albert Demny, J. Matt Harwell, Reggie H. Etheridge | 1989-12-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886121 | Universal flexbowl wellhead and well completion method | Albert Demny, J. Matt Harwell, Reggie H. Etheridge | 1989-12-12 |