Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5470458 | Method for the recovery of black oil residues | Ian Ripley | 1995-11-28 |
| 5085242 | Method and apparatus for the removal of black oil residues from tanks | Ian Ripley | 1992-02-04 |
| 5050628 | Tank entry procedure and apparatus | Ian Ripley | 1991-09-24 |
| 4976278 | Method and apparatus for introducing and positioning a tank contents removal means | Ian Ripley | 1990-12-11 |