| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 6 | |
| #2 | United Kingdom | 3 | |
| #3 | Germany | 1 | |
| #4 | Spain | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Vehicle brake control systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Houplain Georges-Emile | 6 |
| Publication | Filing date | Title |
|---|---|---|
| ES165570A1 | A regulator device of the timonera and air economizer for compressed air braking, particularly for railway rolling material | |
| GB507654A | Compressed air braking device | |
| GB491849A | Improvements in pneumatic braking devices | |
| GB426720A | Regulator for vacuum or compressed air brakes, applicable to fast trains and to goods trains |