Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9174873 | Material to be used as a concrete additive | Jan-Erik Teirfolk, Markku Leivo, Hannele Kuosa, Kirsi Kataja, Antti Nurmi | 2015-11-03 |
| 8807870 | Method for treating soil material | Jan-Erik Teirfolk, Laura Alakukku, Martti Sarkia, Helinä Hartikainen | 2014-08-19 |