| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 4 | |
| #2 | United Kingdom | 3 | |
| #3 | United States | 3 | |
| #4 | Australia | 2 | |
| #5 | Canada | 2 | |
| #6 | Italy | 2 | |
| #7 | Republic of Korea | 2 | |
| #8 | Belgium | 1 | |
| #9 | China | 1 | |
| #10 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Chemical engineering | |
| #3 | Thermal processes | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Milling | |
| #2 | Separation | |
| #3 | Air-conditioning | |
| #4 | Machines for making railways |
| # | Name | Total Patents |
|---|---|---|
| #1 | Chen Chi-Shiang | 18 |
| #2 | Chi-Shiang Chen | 2 |
| Publication | Filing date | Title |
|---|---|---|
| DE4308709A1 | Rail for track vehicles | |
| IT9021355D0 | Grinding device | |
| KR930000002B1 | Crusher | |
| AU621505B1 | Grinding apparatus | |
| GB9017030D0 | Improved grinding machine | |
| CA2022674A1 | Air-cleaning apparatus | |
| CA2022673A1 | Grinding machine | |
| AU5996290A | Improved grinding machine | |
| GB9016692D0 | Gas-cleaning apparatus | |
| US4973003A | Grinding apparatus | |
| US4957519A | Air-cleaning apparatus | |
| US4930708A | Grinding apparatus | |
| KR910002526B1 | Crusher |