| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 4 | |
| #2 | United Kingdom | 3 | |
| #3 | Austria | 2 | |
| #4 | Denmark | 1 | |
| #5 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Rotary-pistons | |
| #2 | Pumps | |
| #3 | Lubricating |
| # | Name | Total Patents |
|---|---|---|
| #1 | Axien Johann Hugo | 7 |
| #2 | Johann Hugo Axien | 4 |
| #3 | Julius Juergens | 1 |
| #4 | Juergens Julius Charles Friedr | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB191308251A | Improvements in and relating to Rotary Blowers. | |
| US1092132A | Blower. | |
| GB191026097A | Improvements in and relating to Rotary Pumps. | |
| GB190927682A | Process and Apparatus for the Separation of Lubricating Oil in Rotary Vane Pumps and the like. |