| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 9 | |
| #2 | Netherlands | 2 | |
| #3 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Mechanical elements | |
| #3 | Environmental technology | |
| #4 | Engines, pumps and turbines | |
| #5 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Percussive tools | |
| #2 | Pistons and sealings | |
| #3 | Accessories for machine tools | |
| #4 | Turning | |
| #5 | Multi-purpose tools | |
| #6 | Earth drilling | |
| #7 | Shafts | |
| #8 | Grinding or polishing devices | |
| #9 | Climate change mitigation in goods production | |
| #10 | Pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Holzaepfel Jacob | 6 |
| #2 | Jakob Holzaepfel | 2 |
| #3 | Jakob Holzapfel | 1 |
| #4 | Friedrich Duss | 1 |
| #5 | Jacob Holzaepfel | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CH608983A5 | Portable, electrically driven percussive or rotary-percussive hammer with a housing space formed by shaped parts | |
| CH608982A5 | Portable hammer driven by electric motor and having a lubricating device | |
| CH611198A5 | Percussive or rotary percussive hammer, the tool of which can be acted upon by a freely floating piston | |
| CH612872A5 | Manually guided hammer with a collar protecting the tool bearing from dust |