Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7364662 | Scraper adjustment mechanism and method | David A. Laing | 2008-04-29 |
| 6861004 | Self-cleaning water filter | David A. Laing | 2005-03-01 |
| 6821444 | Self-cleaning fuel oil strainer | David A. Laing | 2004-11-23 |
| 6712981 | Method of cleaning a cylindrical water strainer utilizing reverse flow and ultrasonic energy | David A. Laing | 2004-03-30 |
| 6676834 | Self-cleaning water filter | David A. Laing | 2004-01-13 |
| 6666976 | Self cleaning water filter | David A. Laing | 2003-12-23 |
| 6517722 | Self cleaning fuel oil strainer | David A. Laing | 2003-02-11 |
| 6177022 | Self-cleaning fuel oil strainer | David A. Laing | 2001-01-23 |
| 5802801 | Locker door and frame assembly | Charles D. Hohns | 1998-09-08 |