| 11253124 |
Safety module for a floor cleaning unit |
David M. Knuth, Jr., Stephen J. Balas, Angelo Sabatino, Marcel Graf, Andre Baertsch +1 more |
2022-02-22 |
| 10034590 |
Cleaning device with single tank recycling system |
Stephen J. Balas, Henry L. Hillman, Jr., Victor Chi-Chih Huang, Ralph McCann, Kevin L. Thomas |
2018-07-31 |
| 9895041 |
Cleaning device with single tank recycling system |
Stephen J. Balas, Henry L. Hillman, Jr., Victor Chi-Chih Huang, Ralph McCann, Kevin L. Thomas |
2018-02-20 |
| 9609991 |
Methods and systems for movement of an automatic cleaning device using video signal |
Henry L. Hillman, Jr., David M. Knuth, Jr., Daniel M. Daly, Vinton Coffman, Ralph McCann +1 more |
2017-04-04 |
| 9028617 |
Cleaning device with single tank recycling system |
Stephen J. Balas, Henry L. Hillman, Jr., Victor Chi-Chih Huang, Ralph McCann, Kevin L. Thomas |
2015-05-12 |
| 8679260 |
Methods and systems for movement of an automatic cleaning device using video signal |
Henry L. Hillman, Jr., David M. Knuth, Jr., Daniel M. Daly, Vinton Coffman, Ralph McCann +1 more |
2014-03-25 |
| 8423225 |
Methods and systems for movement of robotic device using video signal |
Henry L. Hillman, Jr., David M. Knuth, Jr., Daniel M. Daly, Vinton Coffman, Ralph McCann +1 more |
2013-04-16 |