Issued Patents All Time
Showing 26–50 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7199711 | Mobile floor cleaner data communication | — | 2007-04-03 |
| 7172658 | Cleaning liquid dispensing in a mobile hard surface cleaner | Joseph K. Krueger, Joseph Pouliot | 2007-02-06 |
| 7051399 | Cleaner cartridge | Daniel L. Joynt, Jeffrey A. Johnson, Joseph K. Krueger, Bryan Christensen | 2006-05-30 |
| 6761127 | Apparatus for curing floor coatings using ultraviolet radiation | Earl Krueger | 2004-07-13 |
| 6735811 | Cleaning liquid dispensing system for a hard floor surface cleaner | Joseph K. Krueger, Bryan Christensen, Richard Mark Pierce, James J. Seifert | 2004-05-18 |
| 6705332 | Hard floor surface cleaner utilizing an aerated cleaning liquid | Bryan Christensen, Michael L. Blehert | 2004-03-16 |
| D485175 | Cleaner cartridge | Daniel L. Joynt, Joseph K. Krueger, Earl Krueger, Bryan Christensen | 2004-01-13 |
| 6671925 | Chemical dispenser for a hard floor surface cleaner | Joseph K. Krueger, Daniel L. Joynt, Joseph Pouliot, Daniel J. McHugh | 2004-01-06 |
| 6668954 | Electric hybrid vehicle | — | 2003-12-30 |
| 6662600 | Foamed cleaning liquid dispensing system | Joseph K. Krueger, Bryan Christensen | 2003-12-16 |
| 6585827 | Apparatus and method of use for cleaning a hard floor surface utilizing an aerated cleaning liquid | Earl Krueger, Bryan Christensen, James J. Seifert, Michael L. Blehert | 2003-07-01 |
| 6481516 | Electric hybrid vehicle | Spencer Adler | 2002-11-19 |
| 6125495 | Variable diameter cleaning brush | David W. Berg, Earl Krueger | 2000-10-03 |
| 6117200 | Electromagnetic filter cleaning system | David W. Berg, Joseph Pouliot | 2000-09-12 |
| 6096383 | Curing of floor coatings using long and short wave ultraviolet radiation | David W. Berg, Norman William Gill, Joseph S. Keute, Deone E. Johnson, Earl Krueger | 2000-08-01 |
| 6044922 | Electric hybrid vehicle | — | 2000-04-04 |
| 5829094 | Sweeper with electromagnetic filter cleaning | Laurence A. Jensen, Charles W. Bricher | 1998-11-03 |
| 5711775 | Sweeper with electromagnetic filter cleaning | Nilabh Narayan | 1998-01-27 |
| 5081365 | Electric hybrid vehicle and method of controlling it | Charles W. Bricher | 1992-01-14 |
| 5020620 | Offsetting the course of a laser guided vehicle | — | 1991-06-04 |
| 4996468 | Automated guided vehicle | Joseph G. Kasper | 1991-02-26 |
| 4967064 | Method and apparatus for a target determining apparatus having increased range | Paul Hunt | 1990-10-30 |
| 4876444 | Protection from extraneous light for light guided vehicle | — | 1989-10-24 |
| 4846297 | Automated guided vehicle | Joseph G. Kasper | 1989-07-11 |
| 4825500 | Speed and steering control for a floor maintenance machine | Michael T. Basham, Robert M. Berdahl | 1989-05-02 |