Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6471664 | Knee joint and method | James Campbell, Derek M. Helenberger | 2002-10-29 |
| 6471665 | Postural dynamic spinal extension brace and method | Jack Milbourn, James Campbell | 2002-10-29 |