| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 11 | |
| #2 | Germany | 3 | |
| #3 | United States | 3 | |
| #4 | United Kingdom | 1 | |
| #5 | Ireland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Vehicle brake control systems | |
| #2 | Railway brakes | |
| #3 | Clutches and brakes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Georges Houplain | 2 |
| #2 | Mare Douziech Eugene Felix | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1993653A | Load brake mechanism | |
| DE613472C | Adjustment device for air brake devices of railway vehicles | |
| US1957890A | Slack adjusting device for brakes | |
| IE12670L | Vacuum brakes | |
| GB382403A | Improvements in vacuum brake apparatus | |
| DE564883C | Air brake for railroad cars | |
| DE602842C | Vacuum brake | |
| US1865105A | Fluid driving device for actuating mechanisms having an initial idle stroke |