Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12070012 | Pet bathing tool and system | Eric J. Hansen, Belinda Drake, Sue A. Potter, Charles A. Martin, Brian C. Wolfe +1 more | 2024-08-27 |
| 11771287 | Surface cleaning apparatus | Michael D. Graham | 2023-10-03 |
| 11259678 | Surface cleaning apparatus | Michael D. Graham | 2022-03-01 |
| 11083170 | Pet bathing tool and system | Eric J. Hansen, Belinda Drake, Sue A. Potter, Charles A. Martin, Brian C. Wolfe +1 more | 2021-08-10 |
| 10398271 | Vacuum cleaner with hair collection element | Steve Butkiewicz | 2019-09-03 |
| 10327616 | Surface cleaning apparatus | Michael D. Graham | 2019-06-25 |
| 9854952 | Vacuum cleaner with hair collection element | — | 2018-01-02 |
| 9713408 | Vacuum cleaner with hair collection element | Steve Butkiewicz | 2017-07-25 |
| 9615703 | Surface cleaning apparatus | Michael D. Graham | 2017-04-11 |
| 9474424 | Surface cleaning apparatus | Michael D. Graham | 2016-10-25 |
| 9072417 | Vacuum cleaner with hair collection element | Steve Butkiewicz | 2015-07-07 |
| 8752242 | Vacuum cleaner base with nozzle height adjustment | Jonathan L. Miner, Gary A. Kasper, Tom Minh Nguyen, Alan J. Krebs | 2014-06-17 |
| 8549697 | Unattended spot cleaning with surface sanitization | Phong Hoang Tran, Jeremy Moog, Aaron P. Griffith, Timothy S. Parker | 2013-10-08 |
| 8407851 | Vacuum cleaner with hair collection element | Steve Butkiewicz | 2013-04-02 |
| 8117714 | Vacuum cleaner with hair collection element | Tom Minh Nguyen, Steven J. Butkiewicz, Alan J. Krebs, Gary A. Kasper, Timothy S. Parker +2 more | 2012-02-21 |
| 7861369 | Belt disengaging device for a vacuum cleaner | Jonathan L. Miner | 2011-01-04 |
| 7748079 | Cyclone separator with fine particle separation member | David E. McDowell, Charles A. Reed, Jr., Timothy S. Parker | 2010-07-06 |
| 6063171 | Bactericidal vacuum cleaner filter bag | Joseph P. Urso | 2000-05-16 |
| 5551731 | Handle system for vacuum cleaner | Steven L. Gray, Peter Hoekstra, Michael F. Martin | 1996-09-03 |
| 5542146 | Electronic vacuum cleaner control system | Peter Hoekstra, Timothy W. Jackson, Odero Conci | 1996-08-06 |
| 5507067 | Electronic vacuum cleaner control system | Peter Hoekstra, Timothy W. Jackson, Odero Conci | 1996-04-16 |
| 5472346 | Swivel joint for vacuum cleaner | Steven L. Gray, Peter Hoekstra, Michael F. Martin | 1995-12-05 |
| 5389004 | Handle and wand system for vacuum cleaner | Steven L. Gray, Peter Hoekstra, Michael F. Martin | 1995-02-14 |
| 5387117 | Universal central vacuum cleaner hose end fitting | Randall Gill, Peter Hoekstra, Leonard E. Bowerman, Jeffrey H. Ingerman | 1995-02-07 |
| D353917 | Combined vacuum cleaner handle and wand | Peter Hoekstra, Michael F. Martin, Duane M. Loose, David G. Honan | 1994-12-27 |