Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4646370 | Shroud for lavatory trap | Mark A. Risberg | 1987-03-03 |
| 4646780 | Toilet tank float valve assembly | — | 1987-03-03 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4646370 | Shroud for lavatory trap | Mark A. Risberg | 1987-03-03 |
| 4646780 | Toilet tank float valve assembly | — | 1987-03-03 |