Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9731992 | Method for heating glass sheet, and glass tempering furnace | Petri Lammi, Esa Ensio Lammi, Jarno Tapio Nieminen | 2017-08-15 |
| 9567251 | Method for heating glass sheets, and glass tempering furnace | Petri Lammi, Esa Ensio Lammi, Jarno Tapio Nieminen | 2017-02-14 |