Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4937557 | Monitoring and indicating circuit for reverse osmosis filter | Mario A. Tucci | 1990-06-26 |
| 4847598 | Water treatment regeneration system incorporating alternating current excitation and paired operational amplifiers with asymmetrical feedback elements | Mario A. Tucci | 1989-07-11 |
| 4540877 | Constant current closed loop controller for rotating system | Richard J. Zelinka, Thomas Thielen | 1985-09-10 |
| 4374362 | Instrument zeroing circuit | Thomas Thielen | 1983-02-15 |
| 4320010 | Regeneration detector for water softeners | Mario A. Tucci | 1982-03-16 |