| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 6 | |
| #2 | United Kingdom | 3 | |
| #3 | Italy | 3 | |
| #4 | New Zealand | 1 | |
| #5 | United States | 1 | |
| #6 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Machine tools | |
| #3 | Environmental technology | |
| #4 | Civil engineering | |
| #5 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Presses | |
| #3 | Water treatment | |
| #4 | Mixing | |
| #5 | Chemical or physical processes | |
| #6 | Indexing scheme relating to hinges | |
| #7 | Climate change mitigation in wastewater treatment | |
| #8 | Rotary pistons | |
| #9 | Hinges for doors or windows |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bahr Albert | 3 |
| #2 | Bahr Adolf | 3 |
| #3 | Bahr A | 3 |
| Publication | Filing date | Title |
|---|---|---|
| GB1561532A | Method and device for introducing a gas into a liquid | |
| AU7317874A | Rotary engine transfer apparatus | |
| AU7272574A | Arrangements for controlling doors | |
| AU5367073A | Transmission of forces | |
| US3743100A | Filter press, more particularly for dewatering sludge in sewage treatment plants |