| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 4 | |
| #2 | Denmark | 4 | |
| #3 | Belgium | 2 | |
| #4 | Germany | 2 | |
| #5 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Civil engineering | |
| #3 | Materials and metallurgy | |
| #4 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Shaping clay | |
| #2 | Building materials | |
| #3 | Structural elements | |
| #4 | Shaping of plastics | |
| #5 | Packaging | |
| #6 | General building constructions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Elgenstierna Reinhold Magnus | 9 |
| #2 | Reinhold Magnus Elgenstierna | 4 |
| #3 | Ohlson George | 2 |
| #4 | Persson Bengt Erik | 1 |
| #5 | George Ohlson | 1 |
| #6 | Lundgren Thord Ebbe E Son | 1 |
| #7 | Lundgren Thord Ebbe Ebbesson | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA479178A | Methods of manufacturing porous building elements |