Issued Patents 1997
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5690630 | Polyaxial pedicle screw | Joseph P. Errico, James D. Ralph | 1997-11-25 |
| 5688274 | Spinal implant device having a single central rod and claw hooks | Joseph P. Errico, James D. Ralph | 1997-11-18 |
| 5688273 | Spinal implant apparatus having a single central rod and plow hooks | Joseph P. Errico, James D. Ralph | 1997-11-18 |
| 5669911 | Polyaxial pedicle screw | Joseph P. Errico, James D. Ralph | 1997-09-23 |
| 5667508 | Unitary locking cap for use with a pedicle screw | James D. Ralph, Steven Tatar | 1997-09-16 |
| 5653763 | Intervertebral space shape conforming cage device | Joseph P. Errico | 1997-08-05 |
| 5647873 | Bicentric polyaxial locking screw and coupling element | Joseph P. Errico, James D. Ralph | 1997-07-15 |
| 5643265 | Dynamic compression polyaxial locking screw plate assembly | Joseph P. Errico, James D. Ralph | 1997-07-01 |
| 5609593 | Advanced polyaxial locking hook and coupling element device for use with top loading rod fixation devices | Joseph P. Errico, James D. Ralph | 1997-03-11 |
| 5609594 | Extending hook and polyaxial coupling element device for use with side loading road fixation devices | Joseph P. Errico, James D. Ralph | 1997-03-11 |