| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 10 | |
| #2 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Mechanical elements | |
| #3 | Basic communication technologies | |
| #4 | Measurement | |
| #5 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Cycle brakes | |
| #2 | Shafts | |
| #3 | Pipes | |
| #4 | Resonators | |
| #5 | Clutches and brakes | |
| #6 | Measuring distances | |
| #7 | Controlling combustion engines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dring John | 10 |
| #2 | Bourne Charles Frederick | 1 |
| #3 | Trigwell James Richard | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB160075A | Improvements in or relating to air inlet valves for internal combustion engines |