| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 6 | |
| #2 | Norway | 5 | |
| #3 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Transport | |
| #3 | Machines | |
| #4 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Construction of bridges | |
| #2 | Ships | |
| #3 | Climate change adaptation technologies | |
| #4 | Hydraulic engineering | |
| #5 | Unspecified technologies | |
| #6 | Shaping clay |
| # | Name | Total Patents |
|---|---|---|
| #1 | Helgesson Ulf | 11 |
| #2 | Helgesson Bjorn | 6 |
| #3 | Helgesson Bjoern | 5 |
| Publication | Filing date | Title |
|---|---|---|
| US5192161A | Floating structure for use as a breakwater | |
| SE8004806L | Method and arrangement for producing construction elements | |
| SE7909691L | Floating bridge which breaks up waves |