| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 3 | |
| #2 | United States | 3 | |
| #3 | WIPO (World Intellectual Property Organization) | 3 | |
| #4 | China | 1 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | Republic of Korea | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Soldering, welding and flame cutting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Li Yongwang | 12 |
| Publication | Filing date | Title |
|---|---|---|
| US2020101565A1 | Laser cutting system for cutting articles and forming filtration tubes | |
| US2020101405A1 | Production system for forming filtration tubes including subsystems and method of using same | |
| US2017173501A1 | Filter assembly and method of use |