Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4852649 | Packer seal means and method | — | 1989-08-01 |
| 4832129 | Multi-position tool and method for running and setting a packer | Richard M. Sproul, Frank Giusti, Jr., John B. Wilkie, Jr. | 1989-05-23 |