Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6726735 | Unitary filter cartridge | Jack T. Clements | 2004-04-27 |
| 6676722 | Air filter assembly capable of top and bottom loading | Jack T. Clements | 2004-01-13 |
| 6440188 | Air filter assembly capable of top and bottom loading | Jack T. Clements | 2002-08-27 |
| RE37163 | Unitary filter cartridge | Jack T. Clements | 2001-05-08 |
| D435640 | Combined cartridge filter and tube frame structure | — | 2000-12-26 |
| 6017378 | Unitary filter cartridge | Jack T. Clements | 2000-01-25 |
| 5885314 | Unitary filter cartridge | Jack T. Clements | 1999-03-23 |
| 5632791 | Unitary filter cartridge | Jack T. Clements | 1997-05-27 |