Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5370183 | Well casing guide string and repair method | H. Andrew Ellis, Erik Peterson | 1994-12-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5370183 | Well casing guide string and repair method | H. Andrew Ellis, Erik Peterson | 1994-12-06 |