Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5226485 | Pass-through zone isolation packer and process for isolating zones in a multiple-zone well | Stephen W. Lambert, Jerrald L. Saulsberry | 1993-07-13 |
| 5184677 | Pass-through zone isolation packer and process for isolating zones in a multiple-zone well | — | 1993-02-09 |