Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9506000 | Tracers and method of marking liquids | Vincent Brian Croud, Duncan William John McCallien | 2016-11-29 |
| 9090841 | Tracers and method of marking hydrocarbon liquids | Duncan William John McCallien, Vincent Brian Croud | 2015-07-28 |
| 8906698 | Method and apparatus for measuring fluorescence in liquids | Vincent Brian Croud, Duncan William John McCallien | 2014-12-09 |