Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5671775 | Valve fluid pressure leakage signaling | — | 1997-09-30 |
| 5669414 | Pop-alert device | — | 1997-09-23 |
| 5646650 | Electronic paintbrush and color palette | Steven M. Blonstein | 1997-07-08 |
| 5638862 | Diaphragm valve | — | 1997-06-17 |