Issued Patents All Time
Showing 26–50 of 81 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7507255 | Insertion tool for use with trial intervertebral distraction spacers | James D. Ralph, Thomas J. Errico | 2009-03-24 |
| 7404795 | Femoral ring loader | James D. Ralph | 2008-07-29 |
| 7314486 | Artificial intervertebral disc having a wave washer force restoring element | James D. Ralph, Joseph P. Errico | 2008-01-01 |
| 7314487 | Intervertebral spacer device having a wave washer force restoring element | James D. Ralph, Joseph P. Errico | 2008-01-01 |
| 7270680 | Intervertebral spacer device utilizing a spirally slotted belleville washer having radially extending grooves | James D. Ralph | 2007-09-18 |
| 7261739 | Intervertebral spacer device having arch shaped spring element | James D. Ralph, Joseph P. Errico | 2007-08-28 |
| 7217292 | Trial intervertebral distraction spacers | James D. Ralph, Thomas J. Errico | 2007-05-15 |
| 7208014 | Intervertebral spacer device utilizing a belleville washer having radially extending grooves | James D. Ralph | 2007-04-24 |
| 7153310 | Vertebral bone distraction instruments | James D. Ralph, Thomas J. Errico | 2006-12-26 |
| 7144426 | Intervertebral spacer device having a slotted domed arch strip spring | James D. Ralph, Joseph P. Errico | 2006-12-05 |
| 7141070 | Intervertebral spacer device having a domed arch shaped spring | James D. Ralph, Joseph P. Errico | 2006-11-28 |
| 7122055 | Artificial intervertebral disc having a spider spring force restoring element | James D. Ralph, Joseph P. Errico | 2006-10-17 |
| 7048763 | Intervertebral spacer device having a radially thinning belleville spring | James D. Ralph | 2006-05-23 |
| RE39089 | Polyaxial pedicle screw having a threaded and tapered compression locking mechanism | James D. Ralph, Joseph P. Errico, Thomas J. Errico | 2006-05-02 |
| 7014658 | Intervertebral spacer device having a multi-pronged domed spring | James D. Ralph, Joseph P. Errico | 2006-03-21 |
| 6989032 | Artificial intervertebral disc | Joseph P. Errico, Michael W. Dudasik, Rafail Zubok, James D. Ralph | 2006-01-24 |
| 6976988 | Insertion tool for use with tapered trial intervertebral distraction spacers | James D. Ralph, Thomas J. Errico | 2005-12-20 |
| 6932844 | Intervertebral spacer device having a slotted domed arch strip spring | James D. Ralph, Joseph P. Errico | 2005-08-23 |
| 6918934 | Artificial intervertebral disc having a slotted belleville washer force restoring element | James D. Ralph | 2005-07-19 |
| 6887273 | Intervertebral spacer device having a domed arch shaped spring | James D. Ralph, Joseph P. Errico | 2005-05-03 |
| 6887274 | Intervertebral spacer device utilizing a belleville washer having radially spaced concentric grooves | James D. Ralph | 2005-05-03 |
| 6869446 | Intervertebral spacer device having a domed arch shaped spring | James D. Ralph, Joseph P. Errico | 2005-03-22 |
| 6863688 | Intervertebral spacer device utilizing a spirally slotted belleville washer having radially spaced concentric grooves | James D. Ralph | 2005-03-08 |
| 6863689 | Intervertebral spacer having a flexible wire mesh vertebral body contact element | James D. Ralph, Thomas J. Errico | 2005-03-08 |
| 6840940 | Polyaxial pedicle screw having a rotating locking element | James D. Ralph | 2005-01-11 |