Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12420243 | Venturi aspirator THM/VOC removal system | — | 2025-09-23 |
| 10550954 | Elastomeric in-line tide gate valve | Chris Raftis, Andre T. Abromaitis | 2020-02-04 |
| 10538438 | Tank overflow pipe adjustable dechlorinating device | Paul E. Handke | 2020-01-21 |
| 10316977 | Multi-outlet check valve nozzle | Spiros G. Raftis | 2019-06-11 |
| 7104279 | Method and apparatus for preventing stagnation in fluid reservoirs | Spiros G. Raftis | 2006-09-12 |
| 6585005 | Reinforced tide gate valve | Spiros G. Raftis | 2003-07-01 |
| 6367505 | Check valve with oversized bill | Spiros G. Raftis, Andre T. Abromaitis | 2002-04-09 |
| 6016839 | Air diffuser valve | Spiros G. Raftis, Chris Mitchell, A. Thomas Abromaitis | 2000-01-25 |
| 5931197 | Asymmetrical check valve | Spiros G. Raftis, A. Thomas Abromaitis | 1999-08-03 |
| 5769125 | Inversion-resistant, readily openable tide gate valve | Spiros G. Raftis, A. Thomas Abromaitis | 1998-06-23 |
| 5727593 | Tide gate valve with curvilinear bill | — | 1998-03-17 |