| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 6 | |
| #2 | Hong Kong | 4 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Civil engineering | |
| #3 | Environmental technology | |
| #4 | Packaging and shipping | |
| #5 | Machine tools | |
| #6 | Furniture and games |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lau Tung Yan | 6 |
| #2 | Yan Lau Tung | 4 |
| #3 | Lau Tung Y | 2 |
| Publication | Filing date | Title |
|---|---|---|
| WO2011098864A1 | Nose and ear hair trimmer | |
| HK1129812A2 | Electrical adaptor plug with foldable pins structure | |
| HK1113268A2 | Unique case of car plug adaptor | |
| US2009121502A1 | Animal litter collector | |
| US2008106108A1 | Animal litter collector | |
| HK1090249A2 | Vacuum machine for zipper bag | |
| US2006260554A1 | Animal litter collector | |
| US2006131310A1 | Sandwich protector | |
| US2006174593A1 | Vacuum machine for zipper bag |