Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11139957 | Method and apparatus for creating a finite blockchain | Hans Ahlback, Harri Hakala, Leena Mattila | 2021-10-05 |
| 10482078 | Methods and devices for handling hash-tree based data signatures | Harri Hakala, Hannu Lehtinen, Leena Mattila | 2019-11-19 |