Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5014733 | Automatic switching valve | — | 1991-05-14 |
| 4889152 | System for automatically selecting and discharging a pressurized cylinder | — | 1989-12-26 |
| 4286750 | Thermostatic valve device having non-linear flow characteristics | Backman Wong | 1981-09-01 |