| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 6 | |
| #2 | China | 5 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Pipes | |
| #3 | Pistons and sealings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Xu Changxiang | 10 |
| #2 | Chen Zhanji | 2 |
| #3 | Changxiang Xu | 1 |
| #4 | Yang Mao | 1 |
| #5 | Xu Mao Yang | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CN103043775A | Water treatment system | |
| CN1405535A | Rechecking method for on-line flow-meter | |
| CN1422725A | Follow-up precision jaw vice | |
| CN1422724A | Combined jaw vice and spherical wedge pit butt locating pair | |
| CN1095006A | Cross keyway series combined fixture |