Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4515477 | Visibility meter and components used therein | — | 1985-05-07 |
| 4511249 | Microprocessor-driven laser ceilometers | Jurgen Rohr | 1985-04-16 |
| 4432645 | Forward-scatter visibility meter | — | 1984-02-21 |
| 4288158 | Laser ceilometer with safety power-reduction feature | — | 1981-09-08 |
| 4259592 | Ceilometric method and apparatus | Martin Spies | 1981-03-31 |