| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Taiwan | 5 | |
| #2 | China | 4 | |
| #3 | Germany | 2 | |
| #4 | United States | 2 | |
| #5 | Japan | 1 | |
| #6 | Republic of Korea | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Nails | |
| #2 | Venting or aerating devices | |
| #3 | Frames | |
| #4 | Transport or storage devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Chang Tsung-Chih | 8 |
| #2 | Chang Yuan-Po | 6 |
| #3 | Zhang Zongzhi | 4 |
| #4 | Zhang Yuanbai | 4 |
| #5 | Zhang Yuan-Bo | 2 |
| #6 | Zhang Zong-Zhi | 1 |
| #7 | Yuan Po Chang | 1 |
| #8 | Tsung Chih Chang | 1 |
| #9 | Chang Yuan Po | 1 |
| #10 | Chang Tsung Chih | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2020256376A1 | Suction cup | |
| US2020248738A1 | Suction cup | |
| JP2020125773A | Sucker | |
| DE102019102534A1 | suction cup | |
| DE102019101540A1 | suction cup | |
| CN111434935A | Suction cup | |
| TW202024497A | Suction cup | |
| CN111102283A | Suction cup | |
| TWI688715B | Vacuum cup | |
| KR20200009234A | Sucker device | |
| CN110469576A | Sucker | |
| TW201945646A | Sucking disc including a sucking disc member and a unidirectional valve, and characterized in increasing an adhering effect with a simple structure | |
| CN107842549A | Acetabula device | |
| TWI604134B | Sucking disc device achieving the aim of enabling the stable adhesion of the sucking disc piece to be kept | |
| TWI561348B | Inertia driven hand tool to save the rotational space and to use conveniently |