Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4564748 | Variable temperature heating control system for inhalation therapy apparatus | — | 1986-01-14 |
| 4367736 | System for detecting bubble formation in clear and opaque fluids | — | 1983-01-11 |
| 4344429 | Bubble detector with feedback circuit for improved sensitivity | Norman Shim | 1982-08-17 |