| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 8 | |
| #2 | Australia | 4 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Pumps | |
| #2 | Internal-combustion piston engines | |
| #3 | Gearing | |
| #4 | Positive-displacement engines | |
| #5 | Cylinders for combustion engines | |
| #6 | Rotary-pistons | |
| #7 | Supplying combustion engines | |
| #8 | Servomotors |
| # | Name | Total Patents |
|---|---|---|
| #1 | Fitzgerald William Maurice Bar | 4 |
| Publication | Filing date | Title |
|---|---|---|
| AU475479B2 | Improvements relating to hydraulic power transmission systems | |
| AU6961074A | Fluid operated valve | |
| AU6961274A | Improvements relating to free piston engines of the opposed piston type | |
| AU6961374A | Improvements relating to shaft seal arrangements | |
| GB1406227A | Power units | |
| GB1406226A | Power units | |
| GB1406222A | Power units | |
| GB1406224A | Power units | |
| GB1406223A | Power units | |
| GB1406221A | Power units | |
| GB1406228A | Power units | |
| GB1406225A | Power units |