Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9957725 | Multi-purpose cleaning trowel | — | 2018-05-01 |
| 9713412 | Cleaning system | — | 2017-07-25 |
| 7160044 | Mop assembly and cart | John J. Dyer, Gary L. Olson, Raymond Maurer, Joseph J. Fodrocy | 2007-01-09 |
| 6854912 | Mop assembly and cart | John J. Dyer, Gary L. Olson, Raymond Maurer, Joseph J. Fodrocy | 2005-02-15 |
| 5531464 | Cart with snap-locking members | Raymond Maurer | 1996-07-02 |
| 5294009 | Laundry cart apparatus | Raymond Maurer | 1994-03-15 |