| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 3 | |
| #2 | Belgium | 1 | |
| #3 | Bulgaria | 1 | |
| #4 | Canada | 1 | |
| #5 | Switzerland | 1 | |
| #6 | Czechoslovakia | 1 | |
| #7 | Germany | 1 | |
| #8 | France | 1 | |
| #9 | Netherlands | 1 | |
| #10 | Romania | 1 | |
| #11 | Sweden | 1 | |
| #12 | USSR (Union of Socialist Soviet Republics) | 1 | |
| #13 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Shafts | |
| #2 | General building constructions | |
| #3 | Roof coverings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Schaden Karl | 4 |
| #2 | Schaden | 1 |
| #3 | Schaden Karl Dipl Ing Dr | 1 |
| #4 | Shaden Karl | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4129991A | Method of producing a concrete lined tunnel or other underground excavation | |
| NL7311047A | Building construction component for wall surface insulation - Comprising a plate of synthetic matl. forming cavitieeiitiesities and surface reinforcement | |
| SU604505A3 | Fencing structure | |
| CA974020A | Assembly having a surface which is to be insulated and process |