Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7370386 | Dual cleaning mode carpet extractor | Dexter Lehman, Agnes Friese | 2008-05-13 |
| 7254867 | Squeegee assembly | Donald Joseph Legatt, Charles A. Cazett | 2007-08-14 |
| 6684452 | Dual cleaning mode carpet extractor | Dexter Lehman, Agnes Friese | 2004-02-03 |