| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 6 | |
| #2 | United States | 4 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Gearing | |
| #3 | Constructional instrument details |
| # | Name | Total Patents |
|---|---|---|
| #1 | Liu Xiaoqi | 12 |
| #2 | Chen Jimeng | 11 |
| #3 | Liu Xiaoxuan | 4 |
| #4 | Liu Zhigang | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US2021095770A1 | Ball valve with forced-sealing operation | |
| US2020041010A1 | Cage reset planetary roller screw device |