| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Denmark | 19 | |
| #2 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Engines, pumps and turbines | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Pistons and sealings | |
| #2 | Cyclically operating valves | |
| #3 | Nonlinear optics |
| # | Name | Total Patents |
|---|---|---|
| #1 | Jensen Jens Christian | 21 |
| Publication | Filing date | Title |
|---|---|---|
| DK266579A | Difference style with blocks | |
| GB191312662A | Improvements in or relating to Lift Valves for Internal Combustion Engines. | |
| GB191300906A | Improvements in or relating to Devices for Protecting Cylinders and Pistons of Machines from Oilsplashes. |