Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4784122 | Portable cervical traction device using constant force springs | — | 1988-11-15 |
| 4606333 | Portable cervical spine traction device | — | 1986-08-19 |
| 4593684 | Occipital support for cervical traction | — | 1986-06-10 |
| 4283857 | Spindle-height gage and method of calibration | Wayne B. Graham | 1981-08-18 |