Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5655837 | Radiation thermometers | Ian Hamilton Ridley | 1997-08-12 |
| 5655838 | Radiation thermometer with a focusing system | Ian Hamilton Ridley | 1997-08-12 |
| 5613777 | Improvements relating to radiation thermometers | Ian Hamilton Ridley | 1997-03-25 |
| 5599105 | Purge assembly | Ian Hamilton Ridley | 1997-02-04 |