Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5074470 | Valving rod with scraper device for foam dispensing apparatus | John F. Zwirlein, James R. Noel, Thomas P. Patrosh | 1991-12-24 |
| 5050776 | Cartridge heater for foam dispensing apparatus | — | 1991-09-24 |
| 5040728 | Composite valving rod scraper device and cartridge | John F. Zwirlein | 1991-08-20 |