| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Hong Kong | 3 | |
| #2 | United States | 3 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 | |
| #4 | Australia | 1 | |
| #5 | Canada | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | Mexico | 1 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Transport | |
| #3 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Office furniture | |
| #2 | Special furniture | |
| #3 | Hand carts | |
| #4 | Containers for goods storage | |
| #5 | Chairs and beds |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ng Kelvin | 12 |
| Publication | Filing date | Title |
|---|---|---|
| US2020205563A1 | Multi-tier interlinked folding frame | |
| US2018220792A1 | Multi-tier interlinked folding frame | |
| HK1144136A2 | A folding frame | |
| HK1126078A2 | Multi-plan compound folding frame | |
| AU2004247054A1 | Multi-plane compound folding frame |