Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6773606 | System for straining septic tank effluent before discharge to a drain field | Charles A. Wilkins | 2004-08-10 |
| 6508933 | Self-cleaning shallow water strainer | Thomas R. Wilkins, Charles A. Wilkins | 2003-01-21 |
| 5993652 | Self-cleaning strainer having rotating strainer frame assembly journaled on central core by sets of wheels | Charles A. Wilkins, Thomas R. Wilkins | 1999-11-30 |
| 5520808 | Rotary self-cleaning strainer having improved upper bearing seal | Charles A. Wilkins, Thomas R. Wilkins | 1996-05-28 |
| 5356532 | Use of a multi-apertured plastic pipe in the drive and structure of a rotary self-cleaning strainer | Thomas R. Wilkins, Charles A. Wilkins | 1994-10-18 |
| 5215656 | Rotary self-cleaning strainer | — | 1993-06-01 |
| 5108592 | Rotary self-cleaning strainer simultaneously cleaned and rotated by nozzle structure | Thomas R. Wilkins, Charles A. Wilkins | 1992-04-28 |
| 4822486 | Rotary self-cleaning strainer | Thomas R. Wilkins, Charles A. Wilkins | 1989-04-18 |