Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5082017 | Anti-siphon ball cock with volume control | Gordon L. Spurgeon, Frank C. Evans | 1992-01-21 |
| 4654900 | Bathtub valve fixture module | — | 1987-04-07 |
| 4545399 | Valve | — | 1985-10-08 |
| 4386275 | Apparatus and method for detecting the presence of a heat-emitting body | Sheldon Kalmowitz, Regis Beigel, Eldon M. Sutphin | 1983-05-31 |