Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5075877 | Microprocessor controlled system and method for automatically determining the rate of leakage from a fluid storage tank | Andrezej Zawadzki | 1991-12-24 |
| 5069068 | Fluid level maintenance sensor for use in a tank test system | Andrzej Zawadzki | 1991-12-03 |
| 4954973 | Microprocessor based tank test management system | Andrzej Zawadzki | 1990-09-04 |
| 4726218 | Tank tightness test apparatus probe | — | 1988-02-23 |
| 4262212 | Automatic power control circuit for recreational vehicle or the like | Andrzej Zawadzki | 1981-04-14 |