| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 3 | |
| #2 | Switzerland | 3 | |
| #3 | Spain | 2 | |
| #4 | United Kingdom | 2 | |
| #5 | Denmark | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Reduction of greenhouse gas emissions | |
| #2 | Machines for liquids |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kersten Paul | 10 |
| #2 | Kersten Louis | 6 |
| Publication | Filing date | Title |
|---|---|---|
| GB190810596A | Improvements in Receptacles for Soap and other Toilet Articles | |
| GB189909802A | Improvements in Buoyancy Motors. | |
| US650063A | Power-motor. |