Issued Patents 2023
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11851941 | Hold-open arrester arrangement having a hold-open function to hold a door open | Juhani Karvonen | 2023-12-26 |
| 11643859 | Door closer arrangement | Juhani Karvonen, Vesa Karkkainen, Petri Sallinen | 2023-05-09 |
| 11619087 | Hold-open arrester arrangement having a hold-open function to hold a door open | Juhani Karvonen | 2023-04-04 |
| 11598134 | Door closer arrangement | Juhani Karvonen | 2023-03-07 |