Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4718495 | Surface packer and method for using the same | Eric P. Lubitz, David D. Szarka, Ernest E. Carter, Jr. | 1988-01-12 |
| 4246968 | Cementing tool with protective sleeve | Eugene E. Baker | 1981-01-27 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4718495 | Surface packer and method for using the same | Eric P. Lubitz, David D. Szarka, Ernest E. Carter, Jr. | 1988-01-12 |
| 4246968 | Cementing tool with protective sleeve | Eugene E. Baker | 1981-01-27 |