Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4714316 | Optical fiber unit having protective assembly | Wayne E. Moore, Stephen R. Quinn, William F. Gasko | 1987-12-22 |
| 4672689 | Water saving toilet system | Walter O. Heinze | 1987-06-16 |
| 4550452 | Toilet system | — | 1985-11-05 |
| 4516280 | Water saving toilet system | — | 1985-05-14 |
| 4457849 | Method and apparatus for filtering industrial and human waste | Walter O. Heinze | 1984-07-03 |
| 4427555 | Filter system | Robert L. Brown | 1984-01-24 |
| 4420403 | Filter module | — | 1983-12-13 |
| 4404696 | Fluid velocity assist | Walter O. Heinze, Jeffrey F. White | 1983-09-20 |
| 4377874 | Bypass valve for a toilet system | — | 1983-03-29 |
| 4333185 | Water saving toilet system | Walter O. Heinze | 1982-06-08 |
| 4215573 | Fluid metering device | — | 1980-08-05 |