| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 5 | |
| #2 | United Kingdom | 5 | |
| #3 | Japan | 4 | |
| #4 | Poland | 4 | |
| #5 | Sweden | 4 | |
| #6 | Austria | 3 | |
| #7 | Australia | 3 | |
| #8 | Canada | 3 | |
| #9 | Spain | 3 | |
| #10 | France | 3 | |
| #11 | United States | 3 | |
| #12 | Brazil | 2 | |
| #13 | South Africa | 2 | |
| #14 | Belgium | 1 | |
| #15 | Switzerland | 1 | |
| #16 | Denmark | 1 | |
| #17 | Finland | 1 | |
| #18 | Italy | 1 | |
| #19 | Netherlands | 1 | |
| #20 | Norway | 1 | |
| #21 | Yugoslavia (Serbia and Montenegro) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Load transportation vehicles | |
| #2 | Motor vehicles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Freller Walter | 9 |
| #2 | Artweger Wolfgang | 9 |
| #3 | Artweger W | 6 |
| #4 | Freller W | 6 |
| #5 | Burger Anton | 3 |
| #6 | Burger A | 3 |
| #7 | Buarutaa Fureraa | 3 |
| #8 | Buorufugangu Arutobueegaa | 3 |
| #9 | Freller Walter Ing | 3 |
| #10 | Artweger Wolfgang Ing | 2 |
| Publication | Filing date | Title |
|---|---|---|
| DE3002108A1 | Detachable caravan body for vehicle - has sandwich layer rigid shell and retracting struts | |
| US4314726A | Cabin structure displaceably mountable on a vehicle | |
| DE2856419A1 | VEHICLE BODY, ESPECIALLY WITH CHANGEABLE INTERIOR | |
| ATA792578A | Cabin-like construction with interior in its large size, in particular trailers | |
| ZA7702700B | Caravan | |
| YU113877A | Motor home | |
| ATA827976A | Caravans |