Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4454772 | Method for sampling a fluid from a well | Charles A. Christopher, Robert G. Pindell | 1984-06-19 |
| 4454773 | Time interval automatic well multi-phase fluid sampler | Charles A. Christopher, Robert G. Pindell | 1984-06-19 |