| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 7 | |
| #2 | Belgium | 2 | |
| #3 | France | 2 | |
| #4 | Canada | 1 | |
| #5 | Switzerland | 1 | |
| #6 | German Democratic Republic | 1 | |
| #7 | United Kingdom | 1 | |
| #8 | Netherlands | 1 | |
| #9 | Poland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Surface technology and coating |
| # | Technology | |
|---|---|---|
| #1 | General building constructions | |
| #2 | Scaffolding | |
| #3 | Layered products | |
| #4 | Finishing work on buildings | |
| #5 | Swimming pools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rischmueller Wilhelm | 8 |
| #2 | Rischmuller Wilhelm | 1 |
| #3 | Hillmer Bernd Dipl Ing | 1 |
| #4 | Wilhelm Rischmueller | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE3147651A1 | Silo consisting of precast concrete parts | |
| DE3104519A1 | Ceiling panel which consists of a lightweight insulating material and is intended for suspended ceilings | |
| DE3049245A1 | Lightweight insulating suspended ceiling panel - has edges much thicker than main part for insulation at joints | |
| DE2658415A1 | TISSUE | |
| DE2628110A1 | RIGID FOAM PLATE | |
| GB1079669A | Improvements in shuttering for reinforced concrete ceilings | |
| CA798238A | Reinforced concrete ceilings |