| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 88 | |
| #2 | Germany | 5 | |
| #3 | France | 2 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Machines | |
| #3 | Thermal processes | |
| #4 | Machine tools | |
| #5 | Engines, pumps and turbines | |
| #6 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Containers for goods storage | |
| #2 | Spraying devices | |
| #3 | Domestic stoves | |
| #4 | Burners | |
| #5 | Pumps | |
| #6 | Punching metal | |
| #7 | Shaping of plastics | |
| #8 | Household appliances | |
| #9 | Compounding processes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gebr Hoffmann | 59 |
| #2 | Gebrueder Hoffmann | 25 |
| #3 | Alfred Hadorn | 1 |
| #4 | Emil Stoeckli | 1 |
| #5 | Chem Locuty Pierre Dr | 1 |
| #6 | Arthur Hoffmann | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE549563C | Gas supply for gas baking and roasting ovens | |
| DE564754C | Gas burner operated with compressed air | |
| DE537818C | Socket with an opening rotary lever provided on the lid | |
| DE556901C | Gas stove connected to a space heater |