Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6940402 | Method and apparatus for detection of a location of an event | Clive Martin Lewis | 2005-09-06 |
| 5917417 | Smoke detection system | Christopher Girling, Peter David Fox | 1999-06-29 |