| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 15 | |
| #2 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Packaging and shipping | |
| #3 | Thermal processes | |
| #4 | Mechanical elements | |
| #5 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Load transportation vehicles | |
| #2 | Railway bodies | |
| #3 | Containers for goods storage | |
| #4 | Transferring liquids | |
| #5 | Steam generation | |
| #6 | Pistons and sealings | |
| #7 | Electric motor controls | |
| #8 | Venting or aerating devices |
| Publication | Filing date | Title |
|---|---|---|
| GB280462A | Control of vehicle tank valves |