| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 16 | |
| #2 | Finland | 3 | |
| #3 | United Kingdom | 1 | |
| #4 | Ireland | 1 | |
| #5 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Civil engineering | |
| #3 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Shaping clay | |
| #2 | General building constructions | |
| #3 | Building materials | |
| #4 | Structural elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hoyer Ewald | 14 |
| #2 | Ewald Hoyer | 4 |
| Publication | Filing date | Title |
|---|---|---|
| US1970309A | Floor and ceiling | |
| IE12583L | Floors | |
| GB393537A | Improvements in floors |