Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7917018 | Wearable chemical dispenser | Donald J. Schumacher, Raymund J. Alfaro, Dirk K. Nickel, Tyler D. Duston, Sean P. Kingston +2 more | 2011-03-29 |
| 7833492 | Wearable chemical dispenser | Donald J. Schumacher, Raymund J. Alfaro, Dirk K. Nickel, Tyler D. Duston, Sean P. Kingston +2 more | 2010-11-16 |
| D599898 | Refill for volatile dispenser | Dirk K. Nickel, Sean P. Kingston, Donald J. Schumacher | 2009-09-08 |
| D582535 | Refill for volatile dispenser | Dirk K. Nickel, Sean P. Kingston, Donald J. Schumacher | 2008-12-09 |