Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5646729 | Single-channel gas concentration measurement method and apparatus using a short-resonator Fabry-Perot interferometer | Yrjo Koskinen, Ari Lehto, Simo Tammela, Martti Blomberg, Altti Torkkeli | 1997-07-08 |
| 5644676 | Thermal radiant source with filament encapsulated in protective film | Martti Blomberg, Ari Lehto, Hannu Kattelus | 1997-07-01 |