Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D432916 | Container end cap | Wayne D. Drinkwater, David B. Playfair, Jan M. Enderle | 2000-10-31 |
| 6137972 | Imaging material dispensing system | David B. Playfair, Wayne D. Drinkwater, Jan M. Enderle, Michael Harris | 2000-10-24 |
| D422627 | Plug for a toner container | Wayne D. Drinkwater, David B. Playfair, Jan M. Enderle | 2000-04-11 |