Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10631695 | Vacuum squeegee accessory | Melvin E. Wolfe, Jr. | 2020-04-28 |
| 10292551 | Vacuum cleaner switch assembly | Craig A. Seasholtz, Robert L. Crevling, Jr., Kevin D. Fry | 2019-05-21 |
| 10136785 | Vacuum cleaner having a filter cleaning mechanism | Jason Gottschall, Kurt Westbrook | 2018-11-27 |
| 9826688 | Vacuum device with positive pressure tank | Robert L. Crevling, Jr., Jason Gottschall | 2017-11-28 |
| 9591954 | Vacuum cleaner switch assembly | Craig A. Seasholtz, Robert L. Crevling, Jr., Kevin D. Fry | 2017-03-14 |
| 9198552 | Vacuum cleaner with screen cage | Melvin E. Wolfe, Jr., Li H. Liu | 2015-12-01 |
| 9038236 | Filter shaker | Kevin D. Fry, Robert L. Crevling, Jr. | 2015-05-26 |
| 7654480 | Mulcher | Mark E. Baer, Jason Gottschall, Robert L. Crevling, Jr. | 2010-02-02 |
| D606716 | Vacuum cleaner nozzle | Robert L. Crevling, Jr., Jason Gottschall | 2009-12-22 |
| 7033259 | Hand sander vacuum attachment | Craig A. Seasholtz, Matthew Scott Kepner | 2006-04-25 |
| 6499182 | Convertible blower port for vacuum cleaner | Robert C. Berfield, Ronald Griffin, Kevin D. Fry | 2002-12-31 |
| 6347430 | Self-evacuating vacuum cleaner | Robert C. Berfield | 2002-02-19 |
| 6119304 | Self-evacuating vacuum cleaner | Robert C. Berfield, Marcus Rhone | 2000-09-19 |
| 6009596 | Self-evacuating vacuum cleaner | Robert C. Berfield | 2000-01-04 |
| 5850668 | Self-evacuating vacuum cleaner | Robert C. Berfield, Craig A. Seasholtz | 1998-12-22 |