| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | Australia | 3 | |
| #3 | Switzerland | 3 | |
| #4 | France | 3 | |
| #5 | Austria | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Non-positive-displacement pumps | |
| #2 | Internal-combustion piston engines | |
| #3 | Air-conditioning | |
| #4 | Rotary-pistons |
| # | Name | Total Patents |
|---|---|---|
| #1 | Neumann Christian | 4 |
| #2 | Power Company Natural | 3 |
| Publication | Filing date | Title |
|---|---|---|
| AU488005B | Pressure blowers | |
| AU455305B | Improvements in pressure blowers | |
| AU455205B | Improvements in air compressors | |
| US882478A | Pressure-blower. | |
| US882477A | Centrifugal suction-machine. | |
| US804027A | Air-compressor. | |
| US804028A | Blower. |