| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 14 | |
| #2 | German Democratic Republic | 1 | |
| #3 | France | 1 | |
| #4 | Norway | 1 | |
| #5 | Poland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Control | |
| #3 | Environmental technology | |
| #4 | Measurement | |
| #5 | Chemical engineering | |
| #6 | Packaging and shipping | |
| #7 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Roof coverings | |
| #2 | Teaching materials | |
| #3 | Finishing work on buildings | |
| #4 | Climate change mitigation in wastewater treatment | |
| #5 | Measuring light | |
| #6 | Water treatment | |
| #7 | Separation | |
| #8 | Scaffolding | |
| #9 | Vehicle parts | |
| #10 | Containers for goods storage |
| # | Name | Total Patents |
|---|---|---|
| #1 | Schmidt Rolf | 14 |
| #2 | Kerklies Guido | 1 |
| #3 | Frenzel Christine | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE19860860A1 | Rainwater filter system | |
| DE3713320A1 | Plastic roof covering | |
| DE3642187C1 | Plastic roof covering | |
| DE3600504A1 | Water-catching strip of a motor vehicle | |
| DE3523199A1 | Gutter bracket | |
| DE3513404A1 | Spacing and aerating element for ventilated roof structures | |
| DD205462A1 | Storage tank with feeding and distribution device | |
| DE2551706A1 | Ventilated wall cladding with heat insulation fixture unit - comprising spacer for cladding and retainer for insulation | |
| DE2328389A1 | Proving and checking of mathematical structures - with interchangeable linking unit in free space of housing |