| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 4 | |
| #2 | Norway | 3 | |
| #3 | Australia | 2 | |
| #4 | Canada | 2 | |
| #5 | EPO (European Patent Office) | 2 | |
| #6 | United States | 2 | |
| #7 | WIPO (World Intellectual Property Organization) | 2 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Basic materials chemistry | |
| #3 | Furniture and games | |
| #4 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Persson Nils Christer | 7 |
| #2 | Persson Nils C | 4 |
| #3 | Persson C | 4 |
| #4 | Persson N | 2 |
| Publication | Filing date | Title |
|---|---|---|
| CA1103403A | Container for decomposable material such as excrement | |
| SE7811469L | Container for putrefiable material like excrement | |
| SE7811468L | Container for putrefiable matter such as excrement | |
| SE7604078L | TOILET FOR RECOVERY OF FECALS |