Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9524841 | Heat detector with shape metal alloy element | Paul Rennie, Paul D. Smith, Robert G. Dunster | 2016-12-20 |
| 9429480 | Optical fibre distributed LHD with SMA element for discrete alarm | Paul D. Smith, Paul Rennie | 2016-08-30 |