Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9895463 | Solid state fragrancing | John T. Irwin, Stephen A. Dukes, Robert James Hayes, Donald James Staufenberg | 2018-02-20 |
| 9863131 | Solid state fragrancing | John T. Irwin, Stephen A. Dukes, Robert James Hayes, Donald James Staufenberg | 2018-01-09 |
| 9422697 | Solid state fragrancing | John T. Irwin, Stephen A. Dukes, Robert James Hayes, Donald James Staufenberg | 2016-08-23 |
| 9320406 | Bucketless handle | John T. Irwin, Stephen A. Dukes | 2016-04-26 |
| 9309657 | Floor mat | John T. Irwin, Stephen A. Dukes, Robert James Hayes, Donald James Staufenberg, Mark S. Woytowich +2 more | 2016-04-12 |
| 9278152 | Solid state fragrancing | John T. Irwin, Stephen A. Dukes, Robert James Hayes, Donald James Staufenberg | 2016-03-08 |
| 9234338 | Fragrance control | John T. Irwin, Stephen A. Dukes, Robert James Hayes, Donald James Staufenberg | 2016-01-12 |
| D742609 | Bucketless handle | John T. Irwin, Stephen A. Dukes | 2015-11-03 |
| D692654 | Backpack | John T. Irwin, Stephen A. Dukes | 2013-11-05 |