Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4347142 | Effluent treatment in a non-polluting toilet system | Walter O. Heinze, Aaron Landsman | 1982-08-31 |
| 4246665 | Non-polluting toilet system | Walter O. Heinze, Aaron Landsman | 1981-01-27 |