Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D538883 | Stepped filter housing | William R. Watson | 2007-03-20 |
| 7175761 | Fluid filter assembly | Kris Stanhope, Ronald L. Kinkade, Kent Stanhope, Larry Dean Michels | 2007-02-13 |
| 6117311 | Positive shut off fuel pump dispensing filter | William R. Watson, W. Scott Atteberry | 2000-09-12 |
| 5772881 | Non-metallic spin-on filter | Larry Dean Michels | 1998-06-30 |