| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Australia | 3 | |
| #3 | WIPO (World Intellectual Property Organization) | 3 | |
| #4 | Canada | 2 | |
| #5 | EPO (European Patent Office) | 2 | |
| #6 | Republic of Korea | 2 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Machines | |
| #3 | Basic materials chemistry | |
| #4 | Furniture and games | |
| #5 | Agriculture | |
| #6 | Chemical engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lindstrom Carl R | 13 |
| #2 | Lindstroem Carl R | 2 |
| #3 | White Allen E | 1 |
| #4 | Marchesseault Guy | 1 |
| #5 | Harmoning H David | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US5192428A | Portable system for treating human waste | |
| US5207869A | Evaporative reduction of waste liquid | |
| US5129758A | System and method for distribution of greywater to a soil bed | |
| US5228984A | System for composting feces and treating urine | |
| US5005227A | Composting toilet with respray of liquid wastes |