Issued Patents 2005
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6960063 | Vortex attractor without a backplate | David Reinfeld | 2005-11-01 |
| 6957472 | Cannister and upright vortex vacuum cleaners | David Reinfeld | 2005-10-25 |
| 6896104 | Flat spool elastic motor having time-averaged constant torque output | — | 2005-05-24 |
| 6881025 | Suction cup vortex attractor | David Reinfeld | 2005-04-19 |