Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9821514 | Method and apparatus in the manufacture of a spirally wound and welded tube | Christian Glasberg, Kari Karjalainen | 2017-11-21 |
| 9550210 | Method of coating pipes or pipe sections | Leif Leiden, Jouni Purmonen | 2017-01-24 |