Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4692174 | Ionizer assembly having a bell-mouth outlet | Peter C. Gelfand, Louis F. Rettenmaier | 1987-09-08 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4692174 | Ionizer assembly having a bell-mouth outlet | Peter C. Gelfand, Louis F. Rettenmaier | 1987-09-08 |