Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7355626 | Location of events in a three dimensional space under surveillance | Stephen George Porter | 2008-04-08 |
| 7008063 | Use of distorting optics in imaging systems | Stephen George Porter | 2006-03-07 |
| 6744049 | Detection of obstacles in surveillance systems using pyroelectric arrays | — | 2004-06-01 |
| 6653939 | Multipurpose detector | — | 2003-11-25 |
| 6528788 | Detection of position and motion of sub-pixel images | — | 2003-03-04 |
| 6476859 | Thermal tracker | Bryan Wilson, Stephen George Porter | 2002-11-05 |
| 5091648 | Radiation detection arrangements and methods | Ian A. Owers | 1992-02-25 |
| 4843244 | Security sensors | — | 1989-06-27 |
| 4550311 | Remote sensing systems | Timothy R. F. Hankins, Ian A. Owers | 1985-10-29 |
| 4550312 | Remote sensing systems | Timothy R. F. Hankins | 1985-10-29 |
| 4441100 | Electrical circuits | — | 1984-04-03 |