Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4966233 | Tracer deployment tools | Frank E. Bergren | 1990-10-30 |
| 4685516 | Apparatus for operating wireline tools in wellbores | Lonnie J. Smith, Steven G. Petermann | 1987-08-11 |
| 4627496 | Squeeze cement method using coiled tubing | James D. Ashford, Terry Harrison, James K. Eastlack, Gary D. Herring, David R. Underdown | 1986-12-09 |