Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4473210 | Labyrinth trim valve | — | 1984-09-25 |
| 4258750 | Labyrinth trim valve | Ira H. Schnall | 1981-03-31 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4473210 | Labyrinth trim valve | — | 1984-09-25 |
| 4258750 | Labyrinth trim valve | Ira H. Schnall | 1981-03-31 |