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| Number | Title | Issue Date |
| 3958279 | Recirculating sewerage system A recirculating sewage system comprising a toilet, a recirculating tank, means for draining the recirculating tank, means for directing the effluent flushed from the toilet into the recirculating tank, pump means communicating with the recirculating tank,... | 05/25/1976 |
| 3937023 | Waste and organic garbage disposal system without out-fall line or smoke stack A system and method for destroying waste including garbage, organic trash and sewage in which the waste products are initially combined in an emulsifier, grinder, or shredder at the source such as a residential dwelling or business establishment and pumpe... | 02/10/1976 |
| 3931012 | Sewage treatment system A novel sewage treatment system and components thereof are presented providing in site separation of solids from liquid, incineration or other disposal means of solids, and treatment and purification of the liquid effluent.... | 01/06/1976 |
