| # | Country | Total Patents | |
|---|---|---|---|
| #1 | German Democratic Republic | 5 | |
| #2 | Germany | 4 | |
| #3 | Czechoslovakia | 3 | |
| #4 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Shaping clay | |
| #2 | Roof coverings | |
| #3 | Swimming pools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Menzel Karl-Heinz | 8 |
| #2 | Heinz Menzel Karl | 4 |
| #3 | Menzel Martin | 4 |
| #4 | Zaehr Hans-Joachim | 3 |
| #5 | Reichel Bernhard | 3 |
| #6 | Hahmann Dieter | 2 |
| #7 | Kahl Siegfried | 2 |
| #8 | Sachsse Arnulf | 1 |
| #9 | Reichel Bernard | 1 |
| #10 | Benge Karl-Heinz | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DD201128A3 | Handbrake device for rail vehicles | |
| DD156319A3 | Axle storage of rail vehicles | |
| DD157960A3 | Shock absorber assembly of screw-spring axle holdings of rail vehicles | |
| DD142311A1 | Apparatus for vibrating on core tubes in concrete manufacturing | |
| DD131536A1 | Device for producing concrete parts with loecher | |
| DE1434732A1 | Precast reinforced concrete fence | |
| GB897039A | Moulded bodies production apparatus |