Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5419435 | Sharps disposal system including reusable container | Ugo P. Perzan, Richard A. Blanchette | 1995-05-30 |
| 4901749 | Reversible bottom valve cartridge with an orienting mechanism | — | 1990-02-20 |
| 4896381 | Combination plaster guard and mounting bracket for mixing valve | — | 1990-01-30 |
| 4805661 | Faucet valve with anti-siphon back flow preventer | Alfons Knapp, Robert Roland | 1989-02-21 |
| 4696322 | Faucet valve with anti-siphon back flow preventer | Alfons Knapp, Robert Roland | 1987-09-29 |
| D290492 | Kitchen faucet | Charles P. Hill, Anthony G. Spangler | 1987-06-23 |
| 4523604 | Diverter valve | — | 1985-06-18 |