Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6070288 | Storage bag for vacuum cleaner accessories and the like | Michael Luyckx, Kenneth L. Roberts | 2000-06-06 |
| D425271 | Upright vacuum cleaner base portion | Kenneth L. Roberts, Michael Luyckx | 2000-05-16 |
| D422388 | Upright vacuum cleaner upper portion | Kenneth L. Roberts, Michael Luyckx | 2000-04-04 |
| 5715566 | Cleaning machine with a detachable cleaning module | James M. Weaver, Giovanni Pino, Marc D. Zuiderveen, Douglas J. Medema | 1998-02-10 |
| D379254 | Vacuum cleaner upright portion | Kenneth L. Roberts, Michael Luyckx | 1997-05-13 |
| D375821 | Vacuum cleaner base | Kenneth L. Roberts, Michael Luyckx | 1996-11-19 |
| D374955 | Vacuum cleaner | — | 1996-10-22 |
| 5544385 | Filter bag mounting assembly for a vacuum cleaner | John J. Jailor, William H. Frederick, Scott R. Graham, Kenneth L. Roberts, Eric R. Metzger | 1996-08-13 |
| D371652 | Vacuum cleaner | — | 1996-07-09 |
| 5524321 | Vacuum Cleaner with a detachable vacuum module | James M. Weaver, Giovanni Pino, Marc D. Zuiderveen | 1996-06-11 |
| D368992 | Hand-held vacuum cleaner | Robert Fitzpatrick | 1996-04-16 |
| 5309600 | Vacuum cleaner with a detachable vacuum module | James M. Weaver, Giovanni Pino, Marc D. Zuiderveen | 1994-05-10 |
| 4487602 | Injection device | Terrence B. Christensen, Allen D. McNaughton | 1984-12-11 |
| 4403989 | Injection device | Terrence B. Christensen, Allen D. McNaughton | 1983-09-13 |