Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D403414 | Cylindrical pleated air filter with top and sidewall filtering areas | Duncan Bickerton | 1998-12-29 |
| D403416 | Air filter with top filtering area and tapered sidewall filtering area | Duncan Bickerton | 1998-12-29 |
| D401942 | Filter cover | Duncan Bickerton | 1998-12-01 |
| D401597 | Shallow cylindrical air filter with top and side filtering areas | Duncan Bickerton | 1998-11-24 |
| D401684 | Air Filter | Duncan Bickerton | 1998-11-24 |