Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12032182 | Diffractive grating | Kasimir BLOMSTEDT, Ismo Vartiainen | 2024-07-09 |
| 11513268 | Method of manufacturing a variable efficiency diffractive grating and a diffractive grating | Ismo Vartiainen | 2022-11-29 |
| 11448876 | Method of manufacturing a height-modulated optical diffractive grating | Ismo Vartiainen, Mikhail Erdmanis | 2022-09-20 |
| 11391870 | Height-modulated diffractive master plate and method of manufacturing thereof | Ismo Vartiainen | 2022-07-19 |
| 11194081 | Method of manufacturing a diffractive grating | Juuso Olkkonen, Ismo Vartiainen | 2021-12-07 |
| 11086065 | Diffractive grating with variable diffraction efficiency and method for displaying an image | Ismo Vartiainen, Juuso Olkkonen | 2021-08-10 |