| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 14 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Packaging and shipping | |
| #3 | Machine tools | |
| #4 | Engines, pumps and turbines | |
| #5 | Control |
| # | Technology | |
|---|---|---|
| #1 | Gearing | |
| #2 | Handling thin material | |
| #3 | Punching metal | |
| #4 | Pumps | |
| #5 | Pipes | |
| #6 | Presses | |
| #7 | Systems controlling non-electric variables | |
| #8 | Transport or storage devices | |
| #9 | Rotary-pistons | |
| #10 | Servomotors |
| # | Name | Total Patents |
|---|---|---|
| #1 | Francis Benjamin Levetus | 5 |
| #2 | Company Limited The Keelavite | 4 |
| #3 | George Edward Chittenden | 4 |
| #4 | Norman Lee | 3 |
| #5 | John Stuart Harris | 2 |
| #6 | George Esward Chittenden | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CH314988A | Hydraulic pressure regulator |