Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5989315 | Air separation | John Robert Coates | 1999-11-23 |
| 5985006 | Gas separation | John Robert Coates | 1999-11-16 |
| 5582035 | Air separation | Thomas Rathbone, John T. Lavin | 1996-12-10 |
| 5533339 | Air separation | Stephen Roger Clare, Paul Higginbotham | 1996-07-09 |