| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 5 | |
| #2 | United Kingdom | 4 | |
| #3 | France | 2 | |
| #4 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Motor vehicles | |
| #2 | Vehicle suspension arrangements | |
| #3 | Shafts |
| # | Name | Total Patents |
|---|---|---|
| #1 | Leytens Marcel | 2 |
| #2 | Marcel Leytens | 2 |
| Publication | Filing date | Title |
|---|---|---|
| GB372730A | Improvements in six-wheeled motor vehicles, lorries, trailers or the like | |
| US1694422A | Spring suspension for lorries | |
| GB271787A | Improved spring-suspension for lorries | |
| GB243535A | Improved device for the automatic connection of a tractor and trailer | |
| US1416217A | Means for coupling tractors and trailers | |
| GB145260A | Improvements in tractors and trailers or like vehicles and means for coupling the same |