| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 4 | |
| #2 | Denmark | 3 | |
| #3 | Argentina | 1 | |
| #4 | Brazil | 1 | |
| #5 | Egypt | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | Italy | 1 | |
| #8 | Norway | 1 | |
| #9 | Turkey | 1 | |
| #10 | United States | 1 | |
| #11 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Furniture and games | |
| #3 | Basic materials chemistry | |
| #4 | Machines | |
| #5 | Control | |
| #6 | Thermal processes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Sundberg H | 11 |
| Publication | Filing date | Title |
|---|---|---|
| GB1580659A | Compost producing closets and to methods of treating waste matter in such closets |