Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11135670 | Method and system for submerged arc welding | Hannes Raudsepp, Martin N. Andersson, Rikard Ljungkvist | 2021-10-05 |
| 10913127 | Method for starting a submerged arc welding process and welding apparatus | Hannes Raudsepp, Martin N. Andersson, Rikard Ljungkvist | 2021-02-09 |