Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7090148 | Mixing cup adapting assembly | Robert M. Petrie, Stephen C. P. Joseph, David C. Roeker | 2006-08-15 |
| 6595441 | Mixing cup adapting assembly | Robert M. Petrie, Stephen C. P. Joseph, David C. Roeker | 2003-07-22 |
| 6536687 | Mixing cup adapting assembly | David C. Roeker | 2003-03-25 |