Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4739835 | Quick response glass bulb sprinkler | George S. Polan | 1988-04-26 |
| 4711099 | Portable quick chilling device | George S. Polan | 1987-12-08 |
| 4346554 | Fusible link construction | — | 1982-08-31 |
| 4343364 | Sprinkler head construction | — | 1982-08-10 |
| 4280562 | Distributor for fire protection sprinkler head | — | 1981-07-28 |