| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 2 | |
| #2 | Republic of Korea | 2 | |
| #3 | Singapore | 2 | |
| #4 | China | 1 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | Mexico | 1 | |
| #7 | United States | 1 | |
| #8 | WIPO (World Intellectual Property Organization) | 1 | |
| #9 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Organic fine chemistry | |
| #2 | Pharmaceuticals |
| # | Name | Total Patents |
|---|---|---|
| #1 | Liu Guikun | 11 |
| #2 | Liu Guikan | 1 |
| Publication | Filing date | Title |
|---|---|---|
| KR20120137403A | Aildenafil citrate crystal form o, preparation method and use thereof | |
| CN1615883A | Compound medicine for treating hepatitis B virus and controlling HBV virus duplication |