| # | Country | Total Patents | |
|---|---|---|---|
| #1 | China | 5 | |
| #2 | United States | 3 | |
| #3 | Canada | 2 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | Japan | 1 | |
| #6 | Mexico | 1 | |
| #7 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Basic communication technologies | |
| #2 | Consumer goods | |
| #3 | Electrical machinery and energy | |
| #4 | Environmental technology | |
| #5 | Machines | |
| #6 | Furniture and games | |
| #7 | Chemical engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Liu Zhongdu | 10 |
| #2 | Zhongdu Liu | 4 |
| #3 | Yin Gerald Zheyao | 1 |
| #4 | Liu Zhongxian | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA2304413A1 | Solid state electrical switch | |
| CN1062255A | A kind of multi-purpose ac control curcuit | |
| US4777856A | Dancing-musical instrument | |
| CN1004838B | Dance organ | |
| CN1005677B | Method of program controlling stairway light for energy saving and control module | |
| CN1004590B | Dance musical instrument |