| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 4 | |
| #2 | Germany | 3 | |
| #3 | Austria | 2 | |
| #4 | Denmark | 2 | |
| #5 | Canada | 1 | |
| #6 | Spain | 1 | |
| #7 | France | 1 | |
| #8 | United Kingdom | 1 | |
| #9 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machine tools | |
| #3 | Packaging and shipping | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Presses | |
| #2 | Doors and windows | |
| #3 | Gearing | |
| #4 | Transport or storage devices | |
| #5 | Scaffolding | |
| #6 | General building constructions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hartmann Otto | 11 |
| #2 | Rudolf Naegeli | 1 |
| #3 | Otto Hartmann | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FR2190608A1 | Juice extraction press - with stepped motion drive for a main conveyor belt | |
| US895855A | Driving-pulley. | |
| GB190719793A | Improvements in Driving Pulleys. | |
| CA244497A | Ceiling |