| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Czechia | 2 | |
| #2 | Norway | 2 | |
| #3 | Slovakia | 2 | |
| #4 | Germany | 1 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | Finland | 1 | |
| #7 | Hungary | 1 | |
| #8 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Mechanical elements | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Tools for connecting or disengaging | |
| #2 | Nails | |
| #3 | Unspecified technologies | |
| #4 | Soldering, welding and flame cutting | |
| #5 | Workshop equipment | |
| #6 | Accessories for machine tools | |
| #7 | Frames |
| # | Name | Total Patents |
|---|---|---|
| #1 | Demmeler Ludwig | 11 |
| #2 | Demmeler Johannes | 9 |
| Publication | Filing date | Title |
|---|---|---|
| SK15398A3 | Clamping device | |
| DE4401478A1 | Device for fixing components | |
| CZ250994A3 | Pin for connecting two components | |
| EP0647499A2 | Pivoting and sliding jack clamp |