| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 3 | |
| #2 | China | 2 | |
| #3 | United States | 2 | |
| #4 | Brazil | 1 | |
| #5 | Canada | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | Taiwan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | General building constructions | |
| #2 | Nails | |
| #3 | Structural elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Yau Pak Sum | 11 |
| Publication | Filing date | Title |
|---|---|---|
| WO2013020287A1 | Combined pre-embedded anchoring slot system | |
| WO2013013375A1 | Embedded anchor slot assembly used in building industry | |
| WO2009033429A1 | Channel |