Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D315046 | Modular wheel chair ramp unit | — | 1991-02-26 |
| 4961670 | Molded septic tank | Kenneth M. McKenzie, Wayne R. Anderson | 1990-10-09 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D315046 | Modular wheel chair ramp unit | — | 1991-02-26 |
| 4961670 | Molded septic tank | Kenneth M. McKenzie, Wayne R. Anderson | 1990-10-09 |