Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7665181 | Re-circulating vacuum apparatus for cleaning fabric and other non-tensioned surfaces | Albert W. Gebhard, Patricia A. Brew | 2010-02-23 |
| 5297739 | Enhanced rising device with circular array of orifices | — | 1994-03-29 |
| D333431 | Closure for bags | — | 1993-02-23 |
| 5079806 | Pivotal colsure | — | 1992-01-14 |