Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9501890 | Reduced friction earplug dispenser | David M. Rudek, Guenter M. Zilligen | 2016-11-22 |
| 9412216 | Multi-chambered earplug dispenser | David M. Rudek, Guenter M. Zilligen | 2016-08-09 |