Issued Patents All Time
Showing 25 most recent of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12400558 | Cleaning system with on-board user-training functionality | — | 2025-08-26 |
| 11317777 | Method of cleaning hard surface flooring with portable liquid-recycling liquid-reusing cleaning system | Robert G. Robinson | 2022-05-03 |
| 11000884 | Portable cleaning system and method for cleaning commercial food and beverage refrigeration units | — | 2021-05-11 |
| 10959592 | Portable liquid-recycling liquid-reusing cleaning system for hard surface flooring | Robert G. Robinson | 2021-03-30 |
| 10786131 | Multi-functional cleaning and floor care system | Joshua L. Harrell, Robert W. Kyde, David W. Lloyd, John T. Richter | 2020-09-29 |
| 10368710 | Ergonomic multi-functional cleaning machine | Robert G. Robinson | 2019-08-06 |
| 9389827 | System and method for displaying and editing digitally sampled audio data | — | 2016-07-12 |
| 8800094 | Cleaning cloth including sequential indicators and disposition indicators | — | 2014-08-12 |
| 8793580 | System and method for displaying and editing digitally sampled audio data | — | 2014-07-29 |
| 8738163 | Proxy file pointer method for redirecting access for incompatible file formats | — | 2014-05-27 |
| 8544141 | Cleaning cart systems | Robert W. Kyde, David W. Lloyd, John T. Richter | 2013-10-01 |
| 8139814 | Audio speaker with radial electromagnet | William B. Rottenberg | 2012-03-20 |
| 7878378 | Multi-purpose liquid applicator | — | 2011-02-01 |
| 7717354 | Cleaning system including operator-wearable components | — | 2010-05-18 |
| 7490745 | Multi-purpose liquid applicator | — | 2009-02-17 |
| 7316049 | Apparatus and method for evacuating a liquid | Robert G. Robinson | 2008-01-08 |
| 7272869 | Ergonomic multi-functional cleaning machine | — | 2007-09-25 |
| 7270251 | Multi-purpose liquid applicator | — | 2007-09-18 |
| 6789552 | Method of cleaning a toilet | Robert G. Robinson | 2004-09-14 |
| 6694037 | Spider-less loudspeaker with active restoring apparatus | William B. Rottenberg, Andre G. Routh | 2004-02-17 |
| 6647585 | Multi-functional floor-cleaning tool | — | 2003-11-18 |
| 6431217 | Liquid transport device | — | 2002-08-13 |
| 6283170 | Ergonomic, liquid-transport container | — | 2001-09-04 |
| 6206980 | Multi-functional cleaning machine | — | 2001-03-27 |
| 6089499 | Dual roll, center pull, paper toweling dispenser | — | 2000-07-18 |