| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 5 | |
| #2 | United Kingdom | 3 | |
| #3 | Australia | 2 | |
| #4 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Mechanical elements | |
| #3 | Machine tools | |
| #4 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Internal-combustion piston engines | |
| #2 | Gearing | |
| #3 | Making forged metal products | |
| #4 | Rotary-pistons | |
| #5 | Vehicle transmission mounting | |
| #6 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | James Thomas Spencer | 5 |
| #2 | Thomas Spencer James | 2 |
| #3 | Wilson Thomas Herbert | 2 |
| #4 | Parry Ernest Henry | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB235419A | Improvements in and relating to change speed gearing and transmission and control means applicable to motor cars and other purposes | |
| GB142418A | A rotary pump | |
| GB150436A | An improved machine for manufacturing horseshoes | |
| AU1053613B | Improvements in and relating to four cycle internal combustion engines | |
| AU699906B | Improvements in internal combustion engines |