| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 8 | |
| #2 | France | 6 | |
| #3 | United Kingdom | 6 | |
| #4 | German Democratic Republic | 2 | |
| #5 | Hungary | 2 | |
| #6 | Netherlands | 2 | |
| #7 | Denmark | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Vehicle brake control systems | |
| #2 | Clutches and brakes | |
| #3 | Vehicle suspension arrangements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rockstroh Friedbert | 10 |
| #2 | Urbanke Walter Dipl Ing | 7 |
| #3 | Dunse Helmfried Dipl Ing | 6 |
| #4 | Siepmann Walter | 5 |
| #5 | Urbanke Walter | 3 |
| #6 | Dunse Helmfried | 2 |
| #7 | Thomas Matthias | 1 |
| #8 | Urbanke Walter Willi Georg | 1 |
| #9 | Beer Winfried | 1 |
| #10 | Preissler Willy | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DD266613A1 | spreader | |
| DD254762A1 | Wheel retention, preferably for assembly brought | |
| DE3214054A1 | Arresting arrangement for a combined overrun and parking brake system for trailers | |
| HU188715B | Bracing device for internal shoe brakes of overrunning-brake trailers provided with anti-backing lock | |
| DE3143683A1 | SUPPORT DEVICE OF INNER JAW BRAKES WITH REVERSE AUTOMATIC FOR TRAILER BRAKE TRAILERS |