| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 12 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Climate change adaptation technologies | |
| #2 | Hydraulic engineering | |
| #3 | Foundations and excavations |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ryo Genkai | 12 |
| #2 | Lee Ho-Sang | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JP2002348836A | Wave dissipation block for covering breakwater | |
| JP2002061152A | Wave dissipating block | |
| JP2000336630A | Polygonal wave dissipating concrete block |