Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11534701 | Fluid degassing control system | Carl W. Sims, Quan Liu | 2022-12-27 |
| 5551120 | Conversion assembly for vacuum cleaners | Mark E. Cipolla | 1996-09-03 |
| 5452490 | Brushroll with dual row of bristles | Rudolph F. Brundula | 1995-09-26 |
| 5421058 | Hand-held vacuum cleaner | Terry L. Zahuranec | 1995-06-06 |