Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7376616 | Method of maximizing accounts payable discounts | — | 2008-05-20 |
| 4435451 | Floor mats of the washable, dirt adsorbing type | — | 1984-03-06 |
| 4309470 | Methods and means for minimizing floor dust problems | — | 1982-01-05 |
| 4268929 | Method and apparatus for cleaning rugs and mats | Finn L. Sorensen | 1981-05-26 |