Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8548879 | Materials management system | John W. Curphey, Thanh D. Hoang, Christian K. Fischer | 2013-10-01 |
| 5993212 | Magnetic device preventing detachment of a dental prosthesis from a support member implanted in the jaw | — | 1999-11-30 |
| 4997372 | Magnetic dental retention appliance | Roger E. Rule | 1991-03-05 |
| 4626213 | Dental appliance | Wilbur E. Rule | 1986-12-02 |