Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7500977 | Method and apparatus for manipulating material in the spine | Robert L. Assell, Steven D. Ainsworth, Eugene A. Dickhudt | 2009-03-10 |
| 7473256 | Method and apparatus for spinal distraction | Robert L. Assell, Steven D. Ainsworth, Eugene A. Dickhudt | 2009-01-06 |