Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D875896 | Urinal screen | Robert James Hayes, Dennis Knapp, Luke Stonis | 2020-02-18 |
| 9895463 | Solid state fragrancing | John T. Irwin, Robert James Hayes, Donald James Staufenberg, Jeffrey C. Gayer | 2018-02-20 |
| 9863131 | Solid state fragrancing | John T. Irwin, Robert James Hayes, Donald James Staufenberg, Jeffrey C. Gayer | 2018-01-09 |
| 9422697 | Solid state fragrancing | John T. Irwin, Robert James Hayes, Donald James Staufenberg, Jeffrey C. Gayer | 2016-08-23 |
| 9320406 | Bucketless handle | John T. Irwin, Jeffrey C. Gayer | 2016-04-26 |
| 9309657 | Floor mat | John T. Irwin, Robert James Hayes, Donald James Staufenberg, Jeffrey C. Gayer, Mark S. Woytowich +2 more | 2016-04-12 |
| 9278152 | Solid state fragrancing | John T. Irwin, Robert James Hayes, Donald James Staufenberg, Jeffrey C. Gayer | 2016-03-08 |
| 9234338 | Fragrance control | John T. Irwin, Robert James Hayes, Donald James Staufenberg, Jeffrey C. Gayer | 2016-01-12 |
| D742609 | Bucketless handle | John T. Irwin, Jeffrey C. Gayer | 2015-11-03 |
| D692654 | Backpack | John T. Irwin, Jeffrey C. Gayer | 2013-11-05 |
| D636959 | Trash receptacle | John T. Irwin | 2011-04-26 |
| D630714 | Urinal screen | — | 2011-01-11 |
| D625540 | Urinal mat | — | 2010-10-19 |
| D592899 | Soap dispenser | — | 2009-05-26 |
| D581122 | Bag holder | — | 2008-11-18 |
| D580122 | Bag holder | — | 2008-11-04 |
| D570068 | Hand truck | — | 2008-05-27 |
| D569569 | Bag holder | — | 2008-05-20 |
| 7290651 | Caddy for cleaning supplies | John T. Irwin, Donald T. Soncrant | 2007-11-06 |
| D549920 | Dolly | — | 2007-08-28 |
| D522751 | Caddy for cleaning supplies | John T. Irwin, Donald T. Soncrant | 2006-06-13 |
| 6536686 | Hand activated dispensing pump having sprayer/foamer selector wheel | Martin S. Laffey | 2003-03-25 |
| 6446882 | Trigger sprayer having sprayer/foamer selector nozzle cap | George R. Trepina, Gennaro R. Martire, Wing-Kwong Keung | 2002-09-10 |
| 6382527 | Hand-activated dispensing pump having sprayer/foamer selector wheel | Martin S. Laffey | 2002-05-07 |