Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7524413 | Method and apparatus for treating fluids | Walter Crewson, John W. Lane | 2009-04-28 |
| 7524423 | System and method of generating a ringing magnetic pulse for the treatment of flowing liquids | Walter Crewson | 2009-04-28 |
| 7524424 | Apparatus and method of generating a ringing magnetic pulse for the treatment of flowing liquids | Walter Crewson | 2009-04-28 |
| 5892444 | Alarm system for a card holder | Cliff Evans | 1999-04-06 |