Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7905908 | Spinal mobility preservation method | Andrew H. Cragg, Robert L. Assell, Eugene A. Dickhudt, Bradley J. Wessman | 2011-03-15 |
| 7717958 | Prosthetic nucleus apparatus | Andrew H. Cragg, Robert L. Assell, Eugene A. Dickhudt, Bradley J. Wessman | 2010-05-18 |
| 7662173 | Spinal mobility preservation apparatus | Andrew H. Cragg, Robert L. Assell, Eugene A. Dickhudt, Bradley J. Wessman | 2010-02-16 |
| 7530993 | Method of spinal fixation | Robert L. Assell, Andrew H. Cragg | 2009-05-12 |
| 7500977 | Method and apparatus for manipulating material in the spine | Robert L. Assell, Andrew Cragg, Eugene A. Dickhudt | 2009-03-10 |
| 7491236 | Dual anchor prosthetic nucleus apparatus | Andrew H. Cragg, Robert L. Assell, Eugene A. Dickhudt, Bradley J. Wessman | 2009-02-17 |
| 7473256 | Method and apparatus for spinal distraction | Robert L. Assell, Andrew Cragg, Eugene A. Dickhudt | 2009-01-06 |