| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 26 | |
| #2 | China | 20 | |
| #3 | EPO (European Patent Office) | 18 | |
| #4 | Canada | 16 | |
| #5 | Japan | 15 | |
| #6 | WIPO (World Intellectual Property Organization) | 13 | |
| #7 | United States | 12 | |
| #8 | Australia | 11 | |
| #9 | Poland | 5 | |
| #10 | Argentina | 4 | |
| #11 | Indonesia | 4 | |
| #12 | Norway | 4 | |
| #13 | South Africa | 4 | |
| #14 | Brazil | 3 | |
| #15 | Republic of Korea | 3 | |
| #16 | Mexico | 2 | |
| #17 | Hong Kong | 1 | |
| #18 | Israel | 1 | |
| #19 | Singapore | 1 | |
| #20 | Taiwan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Machines | |
| #3 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Filing and indexing | |
| #2 | Unspecified technologies | |
| #3 | Perforating |
| # | Name | Total Patents |
|---|---|---|
| #1 | Chan Keung | 37 |
| #2 | Law Chun Cheung | 20 |
| #3 | Cheng Hung Yu | 15 |
| #4 | Hongru Zheng | 9 |
| #5 | To Chun Yuen | 9 |
| #6 | Zhenyuan Du | 9 |
| #7 | Cheung Law Chun | 8 |
| #8 | Deng Xitao | 7 |
| #9 | Pi Jinbiao | 6 |
| #10 | Deng Xi Tao | 6 |
| Publication | Filing date | Title |
|---|---|---|
| CN101138922A | Lever clamp mechanism | |
| US2007231057A1 | Loose-leaf ring | |
| KR20070082862A | Spring clip | |
| CN101234493A | Perforator | |
| CN101234494A | Perforator | |
| CN101224684A | Lever clip mechanism | |
| CN101224685A | Lever clip mechanism | |
| CN101224683A | Lever clip mechanism | |
| CN101954808A | Lever clamp mechanism | |
| CN101219617A | Lever clamp | |
| EP1942011A1 | Lever-arch type file mechanism | |
| EP1798056A2 | Fork mechanism and method of use thereof | |
| CN101007480A | Lever clip | |
| CN101172435A | Lever clamp mechanism | |
| CN101168336A | Snap ring | |
| CN101138921A | Lever clamp mechanism | |
| CN101125502A | Lever clamp mechanism | |
| WO2007068165A1 | A lever file | |
| CN101062634A | Spring clamp | |
| CN101032902A | Spring clip |