| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 7 | |
| #2 | United Kingdom | 7 | |
| #3 | Denmark | 2 | |
| #4 | France | 2 | |
| #5 | Canada | 1 | |
| #6 | Switzerland | 1 | |
| #7 | Spain | 1 | |
| #8 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Engines, pumps and turbines | |
| #3 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lorenzen Christian | 21 |
| Publication | Filing date | Title |
|---|---|---|
| GB191005248A | Improvements in Screw Propellers for Aerial Machines Providing Automatical Variation of Pitch. | |
| GB190930471A | Improvements in Rotary Valves of Internal Combustion Engines. | |
| US1044064A | Aerial machine. | |
| GB190928995A | Improvements in or relating to Aerial Propellers. | |
| GB190919265A | Improvements in Screw Propellers for Aerial Machines. | |
| GB190813809A | Improvements in or relating to Aerial Machines. | |
| GB190720520A | Improvements in Rotary Engines. | |
| GB190408488A | Horse velocipede | |
| CA235386A | Gas turbine |