Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4799921 | Method for implanting retainers and implants in cattle | Ronald F. Johnson | 1989-01-24 |
| 4784640 | Apparatus for implanting implants in cattle | Ronald F. Johnson | 1988-11-15 |
| 4659326 | Apparatus for implanting implants in cattle | Ronald F. Johnson | 1987-04-21 |